Love a build like this! It'd be nice to implement a TAG somewhere to improve the spread and lock-on time, maybe in the place of the torso HML? Seems like it's lacking the quirks that make the ATM mad dog so great though, which is a shame.
I was thinking of adding a TAG instead which would also make its heat management much better, but I refrained because I wanted the damage output to be higher. Just my personal idealism there, but a TAG would also work just fine. I'll add an alt TAG version once Smurfy has the mech on it's list.