How will races be balanced?

[Ruse]

I wonder if seeing how small some grunts are would they be given vent crawl or be hard to hit if you consider that most players would be aiming directly ahead of them and considering the average height for both most covvies and humans that would simply fly over a unggoys head or body in general this would make up for being genuinely weak and without a shield like most unggoy tend to be unless they have both a jetpack and a fuel rod then they are annoying