I'd love to see the Mecha Hitler for humanists. (Since you already have doom and Wolfenstein models) even a tamable giant mech like thing like that but I don't think dioxine would go for it. But for real, would love to see the final bosses to the ID factions for their factions... Though, a cyberdemon sounds scary...
Hitler suit sounds like an obvious choice when we move to higher tier Humanist missions, bah, the current Supersoldier is inspired by exactly that.
Imagine spending all your ammo killing that lobsterman, only for an archvile to wander by and resurrect it back up.
There cannot be a cyberdemon because of hard unit height limit of 23 pixels.
Aside from fetish what purpose should the suit fulfill?It could have an inbuild 'whip' to hit foes (bio-source (stun)damage).What kind of stats should it provide? How much inventory? Research-path?Grabbing and pulling things closer doesn't work with this engine, we're not a Viper from X-Com2.