As far as the fuel-for-escorts goes, the V-22 has a relatively new capability to be a ground refueler for escort Cobras, other Ospreys, or ground combat vehicles like tanks and MRAPs. Hot refueling at a FARP of your choosing has been demonstrated and actually used in The Sandbox. Handy.
Helo escort has been part of the Marine light attack mission forever. I've flown more than a few such missions in A-4s, and the Harriers picked it up along with the rest of the light attack role. The fast-movers simply set up an overhead orbit that slowly progresses as the helos move to their objective. The whole package can be self-controlled or coordinated by a FAC/TACA.
TC
