If you plan to use character swaps or inventory mods in online co-op, it is highly recommended that your partner also has the trainer installed. Unsynchronized character models can cause animations to glitch or freeze the session for the second player.
The Ultimate Guide to the Resident Evil 6 Ultimate Trainer: Customizing Your Survival Horror Experience Resident Evil 6 Ultimate Trainer
The trainer provides a wide array of modifications, ranging from standard cheats to complex character swaps: Character and Model Swapping If you plan to use character swaps or