Yeah in a way I agree with you, the cloaking device is not very popular with me either, don't use it at all actually, they should have put something else in there instead, like a better grenade, something like a 'stun grenade' or 'smoke grenade' or even a 'stun grenade'. These would be good for quick cover if needed, or something like the NO. 68 AT Grenade (Anti-Tank) that was used in WWII by Britain, powerful enough to penetrate 2 inches (50mm) of armour.