Spring RTS Engine

When i play spring with maximum annilihation some units never aim and never fire.
It's always the same unit type ( the most of anti-air units, berta canon,
and other )
I'd like to know what is the problem and how to fix it.

Assuming your weapons have enough energy to fire, my first guess would be a bug in Maximum Annihilation.

Not familiar with MA, but in XTA some of the bigger units can't fire until they have enough energy. It's not just a matter of producing more energy than you're using; you have to build dedicated energy storage as well. Also, with some weapons you have to stockpile ammunition in advance. You may have to specify a target or area and manually tell them to attack. Finally, in some mods some units will only target specific types of enemies.

many aa units only attack air, so if you try to attack ground with them they shouldnt fire.