now be nice
Who, me?

a race that allows you to take over other players's bodies?
wtf?
Well I'm thinking hacking-oriented, sure, but focusing more on what the character of "The Laughing Man" actually did in the anime overall, rather than specifically on the cyber-brain hacking bits...which he didn't actually do often...the Major cyber-brain hacked a LOT more than The Laughing Man.

My initial thoughts for potential skills/abilities/ultimates are:
"Eye Hack"
-Grants temporary full invisibility, but severely restricts movement and disables weapon use for the duration
"Delayed Action Virus"
-Targets the enemy player with the most kills and forces them to switch teams for several seconds before returning them to their starting team
"Anonymity"
-Chance to spawn with enemy skin (disguise)
"Remote Dummy" {I know that the Major used this one and The Laughing Man didn't, but meh}
-By operating a fake body remotely, the user escapes death (respawn)
"Cyber-Brain Hack"
-Hack into your enemy and shut them down (Freeze for a few seconds)
Those are just some initial thoughts I had after going back and watching a few episodes as of about two hours ago to now. I'll shuffle it into that race idea format I outlined in my opening post sometime later on and post the finished idea at that time.