So Company of Heroes 2 Theater of War is a no, no?
If you're fighting against other people or be on a scoreboard that is shown online in that part of the game then no!
Well the scoreboard it iffy. If you're stupid you can get caught, but what happens then depends on the game devs/etc.
Hence why the CHT have always said use them at your own risk! I personally will not use a trainer that links me into any online scoreboard or any MP even co-op mode. Its a risk I wont take.