There’s a whole stamina system it checks in order to allow a player to block. Player stats are all kept in the Player State BP for just this reason.
It’s more so once the server, say, determines the player’s stamina is depleted and can no longer block, there are still some booleans that are being checked that aren’t ran through the server that are influenced by that determination but I’m worried can be hacked after the fact.
I’ll probably end cutting out as many checks as possible and then migrating anything that’s left on the player character BP into the Player State.