A build that always interested me was shotgun-melee build based around BLW, but the bonuses weren’t good enough for making the skill management worth it. Also, Ir0n Hand which is boosted by the Ifiltrator com as well didn’t help with it’s mediocre bonuses.
It seems to me that the buff to BLW isn’t big enough to make it worth it to build around it, but I also haven’t tried out the UCP yet so I want to get feedback on both build and skill changes.
I liked the Infiltrator for +6 in Unf0rseen pre buff and pre UCP, so only the most extreme definitions of viable should still find it lacking. Have you tried +11 points in Unf0rseen with Zer0? Pre UCP (at OP3, maybe not much higher), I could kill Scavengers with one hit if I slagged them and softened them up with some Kunai.
Shotgun-based Zer0 based around Be Like Water was also something I enjoyed pre-UCP, but I knew full well that the damage wasn’t anything to write home about (I just liked the combat mechanic). The UCP helped, but I did buff it further so it stings a bit. I’ve added Be Like Water to other COMs too.
I like it with my Jakobs build because it’s damage goes into a single shot. Coming out of Decepti0n with Execute enables Be Like Water, forces the enemy to face you, and stuns them for a moment to lay that shotgun into their soft bits. I only go into Decepti0n long enough to fire Execute, since I’m only using it to apply Death Mark and Be Like Water (and to stun and flip) for this strategy so I can keep the cooldown short.
I still don’t use a purple variant for the “new” Ir0n Hand definition, just because I still don’t put points in there. I’m sure it’s fine now, but I just prefer points in more fun skills. If I was stripping Roid shields, I’d certainly take it.