The Seraphim T3 AA is the least effective of all four of the faction's T3 AA defense. It is obviously more powerful than the T2 version, but it does not have the required oomph to take down heavy air units efficiently or as successfully as the other factions'. Note that this AA installation is far less efficient than those of the other factions due to lack of tracking in its projectiles. You may find that T2 Mobile Anti-Air Flak units are better for the job, especially since they can hover. Due to its low rate of fire T3 AA is easily overwhelmed by hordes of smaller units like gunships or even T1 bombers, so if you do build it you need to back it up with T2 flak as wel[however, the lathu-ioz fires at the same rate as its SAM cousins]. Fighter cover is even more important for the seraphim t