They are just incredibly derpy. A magnetic mine that would follow you unceasingly once you get within x meters of it would be amazing. No more AI ramming derps! Not sure how this would be coded, probably not AI because that takes humongous time and effort. Maybe a physics mechanic? Add magnetism where magnet blocks would be attracted to hull, and mess with electronics (power flux, shield derps, missiles going willy nilly etc) . So this might require some modification to the Schine engine. Of course it is all up to Schema on this one as I have no experience writing a game engine.
edit: deleted double post, silly iPod...