So i tried using some sACU's in combat and it worked pretty well substituted in for some bricks. I did find the AA upgrade very useful against the air opponent and the ability to quickly reclaim the wrecks even in battle made for replenishing the ranks far too critical to not consider having a small platoon of sACU's in the army.
Con's:
-The Cybran sACU has a slow firing rate has trouble with swarming armies
-Its a target and can cause you to become the focus
Pro's
-Although you become the target, it can make for a "Tunnel Vision" affect and distract your opponent
-Reclaim becomes easy to obtain even when the battle is lost (+reclaim out ways the loss in sACU mass)
-Too many tanks to fight coming your way? No Problem, I'll build some T2 PD
-Soaks up a lot of damage, and if you micro well you can back out and repair.
Conclude:
Its good to include a couple sACU's in your army. The DPS/Mass is greater in say T3 Bots BUT the HP/Mass is much MUCH greater invested in an sACU. Use them to soak up some damage, reclaim some wrecks to support replenishing the ranks and back out to repair. If you lose the sACU, don't worry. Nothing is left behind for the opponent to reclaim
P.S.
I hope this leads to more army compilations in the future that include the use of sACU's and various upgrades.