Do you know the range/load capability of the V-22? The C-2A could carry about 10,000 lbs. of cargo or 26 passengers for about 1000 miles doing about 280 Knots.
I thought the V-22 folded up pretty small, but I just don't know that much about it.
Published load/range/speed is very similar to the C-2 in the modern V-22. Operational problems aboard a carrier, though, are quite different, complex and, in these days, costly. No doubt, these issues will be overcome (politically).
As to the “hot” LZ, the limited field of fire available to a door gunner makes a “stinger” in the tail virtually the only defense until forward firing armament is developed for it. Since the Marines are the Marines, look for a turret under the chin, weapon pods under the wings or something similar in the future.