MereCatfish provided us with this early capture from Bungie's 7-minute-long Brute documentary. This one shows (along with an Elite and various lines of fire and information about local terrain) alterations made to the heads-up display, with the shield strength bar separated from the motion detector and placed dead center, straight up. What appear to be four grenade counters appear on the left: Frag, Plasma, Spike... and Shield? Current weapon and ammo information is in the upper right, and the lower right (where normally a single-wield weapon muzzle would protrude) is clear.