This one is hard to describe. I've installed the TacOps pack (Game version 1.80). I'm playing the first mission of the cornerstone campaign on malden. After a while my machine gunners run out of ammo. But they don't report it. Even not if I give command 5-5. I just notice that suddenly they walk around with the pistol out.

This leads to another problem: When I command my soldier to rearm at any dead enemy, they either don't do it or, when they do it, the enemy weapon disappeares.
The enemy weapon also disappears when I use the rearm at soldier action on myself