Populated HQ with stationary NPC’s

This would fill the HQ/lobby with NPC’s which would make the game feel much more lively.

You could have some ESTF operators sitting in the helicopter things. You could have more operators sitting at desks/shooting at the shooting range. You could have them standing about chatting or you could find them getting briefed for their upcoming missions. H***, if you really wanted to put some extra effort, you could add new models about the place too, civilians, arrested revolters and maybe even a special chief ESTF operator.

As I say, this would make the game feel much more realistic and would really add to the overall immersion of breachers.