One of the 4 COR major DD gun(Death Penalty III, Armageddon III, Fomalhaut, tp bonus Ataktos). This gun is quite job changing for COR, not just because 500 tp bonus and high DMG is great for last stand, but the light SC property also allows COR to WS in double BLU melee setup. Without this weapon, COR won't have access to light WS, thus anytime COR tries to WS in a BLU setup against NM like Leviathan, it would actually lower party dps because all COR physical WS interrupts CDC SC, and magical WS doesn't work well on some NM.
For those who don't want to build Death Penalty III, this gun it's also the 2nd best leaden gun at 1000 tp. It actually beats skill 242 Death Penalty for leaden salute if you WS at 1000 tp.
@Zabimaru: BLU gains TP way faster than COR. If using your SC order, the other 2 BLU will sit at 3000 TP while COR doing first 2 WS, even then only 1 BLU can WS.
Agreeing with the claim about insane TP build with this thing.
Samurai Roll and Triple Shot with a good set will return you 1000-1500 TP if all three shots connect. This of course depends on gear and what you get from Samurai Roll.
This is such a good gun, Even if your not going to use it, (Say if you have Afterglow Death Penalty), the Bullets are so useful. I've played COR for 3 days since i got mine, and the TP build rate is insane. That and compared to some of the "other" Aeonics, the Weaponskill is actually good. If you like COR, this is a great gun to get.