Talk:Alien Base Assault
Appearance
There is a limit to the number of bases that will be built: usually 2 per zone: one for an alien base mission and another for infiltration. The water zones won't have either, and some zones won't have infiltration missions. Once a particular mission in a zone is complete, that mission is deactivated for that zone. -Tycho (talk) 00:13, 16 May 2015 (EDT)