Keep What You Steal - finding vehicles and asking the question "is that unlocked?" made for an interesting dynamic, that opened up some options for more interesting game play.
Me: "Is that a jetski?"
FTL: "CO we've found jetskis - can we use them to attack?"
RLM 6 - 6 minutes of being sat down 10 meters away from the helo twiddling thumbs (waiting for the SAM to be disabled) - followed by being airborne for less than 2 minutes at which point we're slapped out the sky by a SAM.
Personally, I'd suggest having the helo team based out a lot further south, as hopefully rather than waiting for the boat team to take out the SAM it'll encourage loading up the helos straight away and getting them airborne and on route to the LZ straight away (with an appropriate hold position in case the SAM isn't taken out by the time the helos get 'near' the LZ) that way you've got a bit tension of building for both the boat team having to work to a timeline to disable the SAM and the helo team is flying into a LZ (instead of being sat around, twiddling thumbs, 10 meters away from the helo).