That's a really bad accusation. No admin should act like that, has anyone got any proof to confirm/deny this happened? Because if it is then there should definitely be some stern words...
I don't mean to add fuel to the fire, and I definitely am not trying to push against Soap as we admin together a lot, but I have a few things to say about this.
1) Yes, he does say "Shitbox" and "scrub" and such.
2) Yes, he can get annoying at times, but I'm pretty sure everyone can, especially me.
3) When I admin with him, if he isn't doing the bans and slays himself, either I get the ban/slay/etc. first and he complains about it (lol I win) or he asks if anyone's going to take care of it. This could be caused by a break in concentration/lack of communication, but even so he does take the initiative when I'm on, and I'm sure when he's the sole admin and there's a few RDMs to take care of he does it just fine.
4) One thing I'd like to add is that Soap rages and ragequits a lot. That's one piece of feedback I'd like to give; especially when other admins aren't on, try to keep a cool head and maybe just spectate a few rounds while doing other things on your computer, but stay on to admin the server.