The only ban I had when using one of CH's trainers was with COD Black Ops 2
on Zombies. I played the game on solo for singleplayer, not multiplayer, used
the trainer...and after a minute into playing Zombies mode, the game crashes
to desktop. then when I started up again, it tells me I'm banned from playing
zombies. I asked my brother to look into it with Steam, I even admitted to steam
that I was cheating but in singleplayer only, and Steam don't care about cheating
in singleplayer games, just multiplayer...then Steam disclosed that it was Treyarch
that banned me, the dev team behind the COD Black Ops games.
But as for every other game I've cheated with, I've had no other bans.