4x UH-1H Huey mission (no mods required). Play as either Hippie squad (m261 rockets, m60 door gunners) or Hillbillie squad (miniguns, minigun door gunners).
Liveries used (highly recommended since they suit the mission aspect):
https://www.digitalcombatsimulator.com/en/files/3312998/
https://www.digitalcombatsimulator.com/en/files/3313000/
Note that you need to go into each liveries description.lua file and remove the following:
custom_args =
{
[1000] = 1.0,
}
to be able to have pylons visible (otherwise it will just look wrong and you may not be able to rearm).
Have fun :)