I've reproduced this on the MQ-4A Greyhawk and on the MQ-12 Falcon
[[ https://drive.google.com/file/d/0B5OB9UVu9czCdTNKQUQ1aFBYRGs/view?usp=sharing | Here's an example mission demonstrating this ]], connect to any UAV, there's a premade
laser target at the outpost and some frozen airborne UAVs.
~~Regarding SACLOS guidance(without laser lock): The normal variants(MQ4,MQ12) can manually guide a DAGR/Scalpel fine, But via the Dynamic Loadout variants, the missiles shoot straight.~~ (fixed)
Regarding laser guidance:
You'll notice that both variants of the MQ-12, which are hovering low, can lock-onto the laser successfully, because it's in a shallow angle to the front of the aircraft (close to its horizon)
Whereas both variants of the MQ-4, which are hovering high, won't be able to lock into the laser since it's in a sharp angle to the front of the aircraft(it's far from its horizon)