Vulder; What role does he fill?

So, I recently got all the parts for Vulder out of the Super UC Gara, but I still don't know how to play him. His transformation doesn't really seem to be all that beneficial, except for how disabled weapons don't trigger lock-on alarms, meaning that I can ambush ambush melees. But, is it just Hit-and-run stealth? Or... what?

Basically, stick with your team and don't go alone attacking enemies. You could even say he's just mainly a support unit, unless you seriously want to tune him.

his hd is accualy a good part for uc land hoppers.

Are his arms good enough to consider placing on any other unit? It's got a decent rate of fire, and it pierces multiple enemies. I kinda like them.

...Not to mention their emergency blades.

i just use his arms on other small cores like dikaros but i just use it for fun though i do kill at least 2 enemies with it every battle.