you should cut to a cutscene to the bmp coming in or the helo about to drop para troopers.
good idea...
The US reinforcements that come in.. I don't think they are needed. you should bring in a helo for evac over near the road
actually, the mission ends when regular forces come to secure the radio tower...
the evac could be another way to end the mission...
I've just played it on my dedi to try to stow the tent, there was no problem with it, and regular forces that came did a great job helping me to end the mission as all my AI troops were down, but they came too soon! (they were too far previously, they're too near in that version, I'll place them half way in the next one...)
EDIT: V6 uploaded!The ending is the same, i added respawning for vehicles at base camp and cutscene of east reinforcements.