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correcting values; somebody stuffed it while copying from Apoc'd. Also adding some notes.
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Each incursion fleet will consist of 1-7 craft, each with a specific composition and role than can be consulted on the tables below. Each force will consist of UFOs with a primary mission which can be [[Alien Infiltration (Apocalypse)|Infiltration]], [[Alien Infiltration (Apocalypse)#Subversion|Subversion]], [[Cityscape Fighting (Apocalypse)#Retaliation|Attack]] and [[Overspawn (Apocalypse)|Overspawn]] Drop. Usually there will also be additional craft flying as escorts and in a few cases an Infiltration or Overspawn Drop force will also have craft assigned to Attack hostile buildings.
Each incursion fleet will consist of 1-7 craft, each with a specific composition and role than can be consulted on the tables below. Each force will consist of UFOs with a primary mission which can be [[Alien Infiltration (Apocalypse)|Infiltration]], [[Alien Infiltration (Apocalypse)#Subversion|Subversion]], [[Cityscape Fighting (Apocalypse)#Retaliation|Attack]] and [[Overspawn (Apocalypse)|Overspawn]] Drop. Usually there will also be additional craft flying as escorts and in a few cases an Infiltration or Overspawn Drop force will also have craft assigned to Attack hostile buildings.


The composition of the fleets depends on the UFOs available at the [[Alien Dimension (Apocalypse)|Alien Dimension]]. Thus, certain fleets will only appear after a certain date.  
The composition of the fleets depends on the UFOs available at the [[Alien Dimension (Apocalypse)|Alien Dimension]]. Thus, certain fleets will only appear after a certain date. The fleets are sorted in order of priority; for a given mission, the aliens will always use the highest-numbered fleet (furthest down on the list) that they can.


The game seems to choose randomly the mission from a list of 10 missions that at game start will consist of only Infiltration ones. As the weeks go this list is changed and other missions are added to that list, although the probability of them occuring will initially be 1 in 10.  
The game seems to choose the mission randomly from a list of 10 missions that at game start will consist of only Infiltration ones. As the weeks go this list is changed and other missions are added to that list, although the probability of them occuring will initially be 1 in 10.  


==[[Alien Infiltration (Apocalypse)|Infiltration]] Fleets==
==[[Alien Infiltration (Apocalypse)|Infiltration]] Fleets==
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<tr><td align="left">6</td><td>[[Image:Apoc_ufo3_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">6</td><td>[[Image:Apoc_ufo3_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">7</td><td>[[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">7</td><td>[[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">8</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td></td><td>4</td></tr>
<tr><td align="left">8*</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td></td><td>4</td></tr>
<tr><td align="left">9</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo3_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">9</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo3_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">10</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">10</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>3</td></tr>
<tr><td align="left">11</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td></td><td>4</td></tr>
<tr><td align="left">11</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td></td><td>4</td></tr>
<tr><td align="left">12</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">12</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">13</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">13</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">14</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>8</td></tr>
<tr><td align="left">14</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>8</td></tr>
<tr><td align="left">15</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>8</td></tr>
<tr><td align="left">15</td><td>[[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>8</td></tr>
<tr><td align="left">16</td><td>[[Image:Apoc_ufo9_icon.png]][[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>7</td></tr>
<tr><td align="left">16*</td><td>[[Image:Apoc_ufo9_icon.png]][[Image:Apoc_ufo6_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>7</td></tr>
<tr><td align="left">17</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>9</td></tr>
<tr><td align="left">17</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>9</td></tr>
<tr><td align="left">18</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>7</td></tr>
<tr><td align="left">18</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>7</td></tr>
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<tr><td align="left">20</td><td>[[Image:Apoc_ufo10_icon.png]][[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>8</td></tr>
<tr><td align="left">20</td><td>[[Image:Apoc_ufo10_icon.png]][[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>8</td></tr>
</table><br />
</table><br />
<nowiki>*</nowiki>These fleets will never appear, as the ships required will also fulfil a higher-priority fleet.


* The presence of [[Alien Transporter (Apocalypse)|Transporters]] or [[Alien Assault Ship (Apocalypse)|Assault Ships]] on a group of UFOs will confirm that its primary mission is infiltration.
* UFO fleets led by [[Alien Transporter (Apocalypse)|Transporters]] or [[Alien Assault Ship (Apocalypse)|Assault Ships]] are always on Infiltration missions.
* A group composed of a [[Alien Battleship (Apocalypse)|Battleship]] and an [[Alien Escort Ship (Apocalypse)|Alien Escort Ship]] will also indicate an infiltration mission.


==[[Alien Infiltration (Apocalypse)#Subversion|Subversion]] Fleets==
==[[Alien Infiltration (Apocalypse)#Subversion|Subversion]] Fleets==
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<tr><td align="left">7</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">7</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo6_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">8</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">8</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">9</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>9</td></tr>
<tr><td align="left">9</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]]</td><td>7</td></tr>
<tr><td align="left">10</td><td>[[Image:Apoc_ufo10_icon.png]][[Image:Apoc_ufo9_icon.png]]</td><td></td><td>9</td></tr>
<tr><td align="left">10</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]]</td><td>8</td></tr>
<tr><td align="left">11</td><td>[[Image:Apoc_ufo9_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td></td><td>9</td></tr>
</table><br />
</table><br />


* Subversion fleets can appear from Week 5 onwards.
* Subversion fleets can appear from Week 5 onwards.
* UFO fleets made solely of [[Alien Probe (Apocalypse)|Probes]], [[Alien Scout Ship (Apocalypse)|Scout Ships]] and [[Alien Battleship (Apocalypse)|Battleships]] are set on Subversion missions.


==[[Cityscape Fighting (Apocalypse)#Retaliation|Attack]] Fleets==
==[[Cityscape Fighting (Apocalypse)#Retaliation|Attack]] Fleets==
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<tr><td align="left">1</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">1</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">2</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td>4</td></tr>
<tr><td align="left">2</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>[[Image:Apoc_ufo2_icon.png]][[Image:Apoc_ufo2_icon.png]]</td><td>4</td></tr>
<tr><td align="left">3</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td>4</td></tr>
<tr><td align="left">3</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td></td><td>5</td></tr>
<tr><td align="left">4</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>4</td></tr>
<tr><td align="left">4</td><td>[[Image:Apoc_ufo5_icon.png]][[Image:Apoc_ufo5_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>4</td></tr>
<tr><td align="left">5</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>5</td></tr>
<tr><td align="left">5</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>[[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]][[Image:Apoc_ufo4_icon.png]]</td><td>5</td></tr>
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</table><br />
</table><br />


* Attack fleets appear from Week 4 onwards.
* Attack fleets appear from Week 4 onwards.
* UFO incursions composed only of [[Alien Fast-Attack Ship (Apocalypse)|Fast-Attack Ships]] or [[Alien Destroyer (Apocalypse)|Destroyers]] have Attack missions.


==[[Overspawn]] [[Cityscape Fighting (Apocalypse)#Retaliation|Drop]] Fleets==
==[[Overspawn]] [[Cityscape Fighting (Apocalypse)#Retaliation|Drop]] Fleets==
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<tr><td align="left">3</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>8</td></tr>
<tr><td align="left">3</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]][[Image:Apoc_ufo8_icon.png]]</td><td>[[Image:Apoc_ufo7_icon.png]][[Image:Apoc_ufo7_icon.png]]</td><td>8</td></tr>
<tr><td align="left">4</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td></td><td>8</td></tr>
<tr><td align="left">4</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]]</td><td></td><td>8</td></tr>
<tr><td align="left">5</td><td>[[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]][[Image:Apoc_ufo9_icon.png]]</td><td></td><td>9</td></tr>
<tr><td align="left">5</td><td>[[Image:Apoc_ufo10_icon.png]][[Image:Apoc_ufo10_icon.png]]</td><td>[[Image:Apoc_ufo9_icon.png]][[Image:Apoc_ufo9_icon.png]]</td><td></td><td>11</td></tr>
</table><br />
</table><br />


* Overspawn drops can appear from Week 8 onwards.
* Overspawn drops can appear from Week 8 onwards.
* A fleet with two [[Alien Mothership (Apocalypse)|Motherships]] is guaranteed to be on an Overspawn Drop mission.


==See Also==
==See Also==

Revision as of 04:52, 2 September 2018

This page lists the types of UFO incursions, the craft involved on each alien mission and their specific roles.

Each incursion fleet will consist of 1-7 craft, each with a specific composition and role than can be consulted on the tables below. Each force will consist of UFOs with a primary mission which can be Infiltration, Subversion, Attack and Overspawn Drop. Usually there will also be additional craft flying as escorts and in a few cases an Infiltration or Overspawn Drop force will also have craft assigned to Attack hostile buildings.

The composition of the fleets depends on the UFOs available at the Alien Dimension. Thus, certain fleets will only appear after a certain date. The fleets are sorted in order of priority; for a given mission, the aliens will always use the highest-numbered fleet (furthest down on the list) that they can.

The game seems to choose the mission randomly from a list of 10 missions that at game start will consist of only Infiltration ones. As the weeks go this list is changed and other missions are added to that list, although the probability of them occuring will initially be 1 in 10.

Infiltration Fleets

Mission Primary Escort Attack Week
11
21
32
42
52
64
73
8*4
93
103
114
124
135
148
158
16*7
179
187
198
208


*These fleets will never appear, as the ships required will also fulfil a higher-priority fleet.

Subversion Fleets

Mission Primary Escort Week
15
25
3 5
45
55
65
75
85
97
108


  • Subversion fleets can appear from Week 5 onwards.

Attack Fleets

Mission Primary Escort Week
14
24
35
44
55
66
77
89
99
108


  • Attack fleets appear from Week 4 onwards.

Overspawn Drop Fleets

Mission Primary Escort Attack Week
18
28
38
48
511


  • Overspawn drops can appear from Week 8 onwards.
  • A fleet with two Motherships is guaranteed to be on an Overspawn Drop mission.

See Also