Kern

Possibly the Butterfly II's bigger sister (cars are always female, right ;-) ), this one can put a serious hurt on you.

A 3.2L engine (the largest common engine that fits unexposed) means she'll move quickly, and is extremely maneuverable. The HMG front-mounted will remove armor posthaste, and with additional pings from the MG mounted next to it, you'll be worried about a breach before you can blink.

Medium Rockets mounted left and right mean even the flanks aren't safe.