Idearz:
Could we have the uber percent shown in the middle of the uber bars( near the ammo hud and in 'healed by/healing:' bubble)? Just something I would like to see and would feel more polished. In addition, when you have 100% uber, the bars could be team colored(darker/lighter than the healing bubble of course) and/or flash slowly(like in Team fortress 2).
And for the place (in healing bubble), where the medic uber bar is shown, we could have a bar showing ammo for non-medic classes. I know you can see teammates' ammo in Lorgan's PL but these things need to be standardized.