I feel like they made a change to them recently. I used to take 110s on bot missions because they would consistently destroy tanks and turrets in 1 call, and they would prioritize fabricators over anything smaller than a hulk which would let me bring stun grenades. Now they feel like they prioritize any enemy over a spawner and I've had the it to where 2 rockets would prioritize infantry next to a tank and only 1 rocket would hit the tank.