Fate CORE ( NOT Accelerated) is probably your best bet, unless you plan to have significant fighting occur out-of-zoid and for your pilots to be significantly different in capability to your Zoids. It is probably hands down the best for creating a fairly-balanced field for both Melee Zoids (Ligers, Rev Raptor, ect) and Long Range Zoids (Sniper Wolf, ect) as well as everything in between. Special movement modes, such as Aquatic Zoids can be represented with Extras.
