is good

Probably how the creator of the model made it

why is the color of it so dark

Just tried something but unfortunately theres no way to make them more resistant to impact forces, my only suggestion is to customise the unit that is causing the impact force using the in-game character customisation and then set the impact force to zero.

I'm not entirely sure, there's no weight option available for us but there is this setting that I'll test out.

any way to make him heavier so he doesn't get thrown by stronger units?