Unit embark/disembark from helicopters

[Pax1601]

• [ ] autodetect landing - have units pre set to get out so the next time it lands they auto disembark (must be a toggle option)
• [ ] autodetect takeoff - once all units set to get in are in it will take off and fly the pre selected route (must be a toggle option)
• [ ] formations on dismebark, depending on location of the gap in the helicopter
• [ ] formations on embark, e.g. units will hold in a specific sensible spot and as the thing touches down head out to get on board going to pre set loading spots and getting onboard sensibly
• [ ] must work with players as well as AI
• [ ] actually add weight to the helicopters or remove them
• [ ] ability to disembark and have troops fire towards direction of enemies and supress (maybe)
• [ ] fast roping as an (optional)
• [ ] some sort of timer that shows how long roughly to go for both embark / disemabark (or even just 1/6)
• [ ] can we make helicopters do proper descent into an LZ, instead of their slow ass approaches and only tell them to land with seconds to go (optional)
• [ ] can we make helicopters do proper exfiltration from lz (optional)
• [ ] can we mark lz's with smoke cover (even if fake), optional
• [ ] a way to maybe designate thinks as helicopter escorts, for like apache / cobra, who won't land in this mode but will stay in close support and racetrack (optional) unless explicitly told to land