[Vallen Chaos Valiant]

I like the long-range attachments for the Tieren... Obviously by having the cannon directly attached to the mobilesuit, the Tieren would be able to use far more powerful shots than what would have been possible with a hand-held weapon.

Spoiler for image of tieren:

(This wasn't an issue for Gundams and their fancy-pansy beam cannons, as a higher beam-weapon power level does not link itself to any serious increase of recoil.)