I'd love to see more variation in the shields themselves. 1) Nanite mesh generator: as is honestly. At max rank it takes 45 seconds to fully recharge. A base vanguard tank can fire 11 shells in that time. People seem to forget it drains over time, even without taking dmg. And glows. And slows. In addition, this one is harder to combine with medkit spamming. 2) resist shield: make it protect vs headshots and dmg > 400. This one gets problematic combined with a medic, or a medkit spammer. Solution: medkit gets a cooldown. Suggestion: 3 seconds. Medic+ resist shield heavy is still very tough, but requires 2 players to pull it off. 3) Adrenaline shield: removed. The problem is this one doesn't scale linearly. Give adrenaline shield to a very good headshotting player aaand.. boom, recharged. other options: 4) Sneaky shield. Doesn't glow, nor slow. Obviously: lesser effect. if nanite mesh generator is 700 HP, this could be 350; or it could offer rapid shield regen during combat. Think the medic self heal ability, but only for his own shield, more powerfull but only for a few seconds. 5) Sneaky AV shield: again, no slow no glow. Works like resist shield, with a sliiight difference: no bonus vs infantry weapons. Offers resist vs vehicle & max weaponry,... 6) AV-y resist shield: normal resist shield is 40-45% resist. AV resist shield grants 60% resistance vs explosions, vehicle weapons etc, but only 30% vs infantry weapons. (Nanoweave armor is 20% at max rank; nano-armor cloak resists up to 35% of small arms) 7) Overcharge shields: quadruples your shields for a few seconds, then collapses. (meaning: no shields) Now, suppose you take 2 167 dmg bullets, then activate this shield. You get an extra 498 shields. So as far as ambushing goes: if the first bullets land, it is worse than NMG. Taking cover for a few seconds would also be highly effective vs this heavy: he'll end up without shields at all. 8) Directional shields (aka: NC max ability): probably difficult to implement. 9) Somehow, a more anti-max shield. Extra resistive vs all max weapons (including AI, explosions), but worse vs other weapons than resist shield.