Wish for a disarm mechanic, give those gun nerds a good chop in their wrists
Versatility 18dex gigachad comes in
Seeing a Suplex move would probably be the most badass thing ever, maybe a special attack/unconditional? Absolutely destroy a pipeworkers spine...and skull.
Disarm is definitely cool. Either make them drop it and have to spend AP picking it up again, or maybe a version where you slap their magazine and force them to reload.
The suplex makes me think of applying enemy repositioning to unarmed attacks. In addition to a spinal injury, the target moves behind you. This opens up a whole array of niche abilities for unarmed, involving moving enemies around.
Another feat idea this all helped create that I wanted to add
Wrestle Gun: For X/Base Attack AP, attempt to wrestle temporary control of an opponent's gun in melee. Melee vs. [Something] check against the target, each debuff (maybe specific ones, like Daze, Stun, Incapacitate) provides a bonus to this. Use the target's gun to to shoot a different target in range.
'Personal' Projectiles (For a strength heavy character): For X/Base Attack AP, throw target up to [Strength Based] size/tiles tiles away. Target takes X Mechanical Damage if impacting a wall (maybe do fun environment stuff too like pits, but that might be too much), or both deals and takes Y Mechanical Damage if impacting another creature (damage based on what is hitting what).
Electrodismantling Strike (Req Electronics and Melee Skill, Int like Cheap Shots): You know enough about electronics to know where the incredibly fragile stuff is, and generally how to access it. Whether wrestling a struggling security bot while you unscrew a compartment or just smashing open a panel, you create a permanent/temporary Expose Weakness on a robot target. Robots affected this way lose immunity to Incapacitate and Stun effects from Melee and Unarmed attacks. X AP to do, Y Cooldown