when you go to the bomb screen thing on that tower near the end of surface tension, a hecu solider starts saying forget about freeman we are cutting our losses and stuff. you can hear other soliders shouting in the background and i think some gunshots. its a bit unnessacery considering there was no fighting at that part in opposing force. anybody else noticed?
That’s just the BM Team’s interpretation of it. Opposing Force is not necessarily considered canon.
More canon than BM tho
When you’re dealing with an enemy that can just teleport in anywhere, then the fighting can be happening anywhere. They could be at the heavily guarded command center relaying orders, when an alien grunt just plops into the room.
So then it really shouldn’t matter what the BM devs did with it. 
I’ll do one when I come home and can use my nice mic. But you need to work on the script a bit for the beginning bro.