u/Intrepid-Act-4019

I apologize in advance that I'm going to be very vague. My friend in the early 2000s had cracked CDs with like 50 games on them. The game I remember is off one of those CDs, so my memory of it is very vague. The only things I remember is that it was either 3rd person or FPS, that you shot aliens and that you could steal their tech. I wasn't good at the game, so I never got past the first part or level. I remember the area I played in being kinda beige, like a sandstone building or something. This has been bothering me for months and I resisted posting here because my memory of it is so bad, but I just HAVE to know what game this is so hopefully someone can piece this together.