Here is what I propose:
1. Buy a scout (light) helicopter.
2. Buy some artillery.
3. From the scenario editor "assign as new leader" the scout helicopter to the artillery units.
4. From the scenario editor adjust the scout helicopter experience & (leader's) artillery command ratings to a value of 100.
You will have achieved:
1. Platoon leader with advanced LOS & mobility (scout helicopter)
2. All artillery units will respond to 1,5 delay with accurate on target bombardment.
see picture: