Doesn't work because the game checks for modified data at launch (afaik EasyAntiCheat), if files are missing or modified the game refuses to start.
About deleting intro files
Peer to Peer multiplayer
Is the multiplayer p2p? - original post by 22.214.171.124
AFAIK, it is. It uses the same engine as Rainbow Six Siege, which is p2p (to be changed). When you connect to a game in For Honor and the lobby leader leaves, it'll migrate the host similar as how Call of Duty works.