What maps have mobile AA (Consoles)
Assuming you are on PS3 based on your Battle-Log the only two maps with mobile AA to my knowledge are:
- Wake Island (Conquest (and Rush I think))
- Noshaar Canals (Rush)
The small number of maps with available mobile AA is probably why you haven't seen it yet. It spawns far back in the base at each set of points in Noshaar and it spawns I believe at the airfield in the hangar on Wake Island Conquest.