The interior of the Sulaco is rather different in both games. I liked to finally explore the "Com Tower" and the horizontal antennas in Infestation. Always thought what these were like on the inside.
It was a joint thing between Wayforward and Gearbox. As Hicks said I suspect Gearbox mucked around with the story. It was supposed to tie in - possibly when they had the NuBSG writers working on it. All that's left is the fact the the USS Sephora (also in A:CM) finds the Sulaco floating in deep space and they investigate. The UPP (from the William Gibson Alien3 script) are in the game.
Shit happens and then some big shit happens at the end which flies in the face of what we see at the start of A:CM (which takes place several weeks after Infestation).
I've heard that this game takes place before Colonial Marines? Is this true? I didn't know they were related in any way. Somebody told me that a character from this game is also in A:CM.
Just curious. If it is related, I'm assuming it takes place before A:CM? I saw this in a cheopo bin for 9.99, so I'm thinking of picking it up.