Did this since I didn't feel like changing up any IS heavies or assaults to run a UAC20 for the Weekend Warrior event. Worked out surprisingly well, all things considered. Heat containment, heat gen, cool run, UAC jam reduction skills are really all you need to worry about. First drop in it, nice since you don't get too much aggro despite packing big guns.
Suicide... Well, this is the problem with dual UAC20 - not only you need to avoid ghost heat from firing 2 of them, each can double-tap ghost heat itself, or get a quadruple whamie super-ghost-heated UAC20 if you double tap both
Suicide came from losing a ST with the LFE which jacked my heat up, but I kept firing the single UAC I had left since there was a KDK-3 and a WHM-IIC right in front of me, as well as a PIR circling my legged mech. Actually by that point the entire left side of my mech was gone, anyway.