Done.
Here's how I usually asault downed or landed UFOs.
Troops near the Sky Ranger cockpit take a look around. They CAN see a good amount of terrain!
Tanks goes out first, checks every direction, moves ahead.
Next four troops go out, take positions behind wheels and each other, try to cover every direction.
Last four troops move ahead in the Sky Ranger, ready to go out.
First "strike team" follows tank lead, all the way to UFO, second team secures houses, barns, takes position on rooftops and second floor windows.
Usually, only my first team will end up going INTO the alien craft. Until now, it is VERY rare when some critter gets my first team from behind. Strategy seems to be working so far, not accounting for mind controllers, those cheating bastards always put my team in disarray.
When one of my troops goes berserk or panicks or is mind controlled, next turn, if he is "feeling better" I disarm him/her and send him back into the Sky Ranger, pending a future Court Martial back at the base
As for the 80 Item limit. Sighs. IT sucks.