Because they don't give a toss for the guys when they're on the
other side of the wall? Is my written english really bad or are you
dense?
Let take one last stab at this:
1. Base: generally quite safe (but not 100%)
2. Outside of base: anything goes
3. Troops have to venture outside of base for
patrols/missions.
4. Troops get hurt or die when they venture outside base
5. When troops get hurt outside base and require air or land
medavac, said medavac will happen only if they are 100% sure LZ is
not hot i.e. they will not come under fire
6. If LZ is determined to be hot, troops will have to
run/crawl/drive their way back to the base before help can be
rendered. And they have to do that while trying to fight off any
hostiles in the area.
