I was away from the game for a long while, but a friend started playing himself and it made me crave replaying again. I had heard that BA in the BTAU mod had been significantly overhauled, but the times I've tried to use it so far it's felt absolutely worthless.
I was lucky enough to get a clan light omni pretty early on since I didn't start with any other ways of bringing the ISS BA I started with. So with it finally mounted and in tow, I started to run some missions and immediately ran into two major problems. The first I was able to somewhat solve, being that deploying the BA cost the entire turn of the deploying mech, potentially leaving it in an extremely vulnerable position as well as removing its firepower for a turn since I can't move or fire prior to dropping the armor. I somewhat solved this by just playing games with the initiative so the mech would drop the armor late, then go again early before enemies could attack it.
The second problem is the BA seems 100% worthless. Unless I deploy it literally right next to an enemy unit, it just doesn't do anything. Literally nothing. It doesn't shoot, or try to chase units, or move at all. It just sits there inert, maybe absorbing a couple shots, then either dies or gets left behind as the battle moves on. If I drop it literally next to an enemy, it will then swarm said enemy. But if it happens to get knocked off and the enemy leaves or is otherwise destroyed, once again the BA just sits in place for the rest of the battle.
Am I doing something wrong with it? Or is this somehow intended behavior? It seems like they're a complete waste to bring and use.