The jump thing might suck, cause lets say you are hiding behind a low wall or box, and want to then stand up and shoot someone, making you jump first would destroy your aim and make you a big target, but I guess its better that not being able to get into vents or small areas, might even bring some nice balance to the item, dunno. Looks like a thing that will have to be tried out to see if the benefit outweighs the cost.