Downpour Update 1.2

Thanks to user Sumanitu and my friend JC for their feedback in this short update. Tweaked the screamers to not be as aggresive. Many players have had issues of them aggressively sticking to the player behind the shield. Now they are more easily shaken off, & dodged. Shield is now toggled on and off instead of being held down. Issue of unnecessary strain on hand when constantly pressing down right mouse for shield, and rapidly clicking left mouse to shoot. Long play times this can really add up. Now players will have more focus available to shooting, flying, and dodging with these 2 updates.