Mike;
At Set up: Can freely deploy 10% (FRU) of forces.
Each turn: Any unit with a leader at the start of Rally Phase can roll for deployment. This includes at start units about to enter (retain “?”). Some units do not need leaders present to deploy/recombine (USMC, Britt carrier hs's).
Why: More units to utilize for searching, mopping up, recon, infiltration, cutting of rout paths, minimizing defender attack results, ameboa attacks, “touching” more VC locations, manning mortars or other SW's, sniper bait near high modifier leaders, and a number of other uses.
Why not: Loss of FP in many casses (5FP squad deploys to two 2FP hs's), elimination of unit on double break, and other negative effects.
Semper Fi!
Scott