I recently gained interest in game making. My basic objective is to create a simple game, a resemblance of how me and my friends played when we were little; what we called zombie. So I tried Game Maker, but it was too unfriendly. And now I discovered 3d Rad, it just seemed perfect. So back to the point : I need to make a 3D multiplayer game somewhat like a shooter and will convert your sprite when another player catches you. I would also like to have items like flash-bang, shield, and most importantly a strength gauge that decreases while running, and disables moving when it hits 0. How can I do this?