Hello, i have been really wanting to use the trainer in Campaign and everytime i do, It says “You have been kicked” or even when i try to just play Horde By my self with the trainer, it even kicks me out, So I am really wondering, is the Gears 5 Trainer gonna be updated or tested yet? Because its been months and still nothing, can i get an update about it Pls.
Hello. 
Trainers are not for online use. This is likely why you are being kicked as you are being detected by the game’s anti-cheat for online games.
Horde mode is a server/cloud-based (aka online) game mode. Even when played solo. So it’s to be expected that the trainer will not work there.
If you want to use the trainer then you need to play the single-player campaign offline.