Heres sample:
Over any map airbase put 1st waypoint, set for as Take Off, Altitude 0, Speed 0.
In "Group properties" tab, tick Spawn Parked (if you whant do cold start).
The second waypoint leave in default settings, 500 - 300 I think.
But Hipo tip of use dogfight map and set a server is better, since you can take of whit any plane without leave the mission, create group of flights, set weapons...
Sokol1