He hits the calianas for a lot less, so i assume it's compound siege. The recharge is about right, too. I did hear, however, that there is a way to increase striker damage by a good amount, thru memory patching. Might aswell be silly babbling of some nub, cause i couldn't find a way to alter either the equiped weapon atk, nor the character atk nor the atk modifier given by bracers/headsets, as of yet. I tried it both on a cora warlock and an accretian striker, without success. If it is possible my guess would be package alteration, and i will look into that next.