The SRM-4 OS on the Quickdraw has to be my pet peeve: 2.5 tons for something that will only get used ONCE in a battle, if at all, and won't do all much even in the event that it does hit. For a half-ton more, they could have made it something useful, or else replaced it with a single SRM-2 and a ton of ammo and at least made it semi-useful, even though far from optimal. Machineguns and a half-ton of ammo would have been an improvement, seriously.
That is another one that is inexcusable.
I'm not even going to complain about putting on a OS launcher on a unit.
Sometimes there is a reason for it.
The DireWolf mentioned below is a valid use of one.
Add a small laser to the damn thing but don't gimp the already questionable close range loadout!
I mean, you add CASE but then remove 1 of the 2 tons of ammo. /BOGGLE!?!?!?!
I don't care for the Hunchback-5M, but that is another one where I can at least try to wrap my head around the decision.
Give it CASE, good. Give it AI ability with SPL, good.
I'm not sure I'd have sacrificed the AC20 Ammo to do that by any means. But I can see where someone might say the 5Ms were going to Urban defense units close to resupply & no enemy unit will survive 5 shots from an AC20 anyway.
Not that I agree, but I can at least TRY to understand the reasons for such bad decisions.
The Goliath & Quickdraw not so much. And really the Hunchie should go in there too but it has 3 improvements for 1 mistake so I'm cutting it a tiny bit of slack.