Thinking about backpacks/ammo limits/ammo sinks

One of the cool things in QW TDM is you can build up obscene amounts of ammo. For example QW backpack holds 100 rockets. That sounds like a lot compared to Reflex's limit of 30 but in a 4v4 TDM match 100 rockets can easily get used up in 5 minutes (matches last 20 minutes). The way such ammo accumulates is due to the backpack system. Players always drop all ammo they have, not just the weapon they were holding. As matches go on, over time ammo naturally tends to build up. Generally speaking players who can stay alive longest or get lots of kills will typically net the biggest backpacks of ammo. You also sometimes just luck into it by killing a player with a lot. However rockets don't stack past a limit of 100, so if you have 99 and pickup another 99 you still only get 100 rockets. I think for larger teamplay games of TDM/CTF that higher ammo limits and backpacks are the way to go (unless there is something better).

It adds a unique dynamic as late game ammo resources can be much higher in certain situations. It also adds another layer to teamplay. You will want to kill that guy with the huge bag of ammo to use it for your own team and to deny it to the enemy. It also makes you consider how efficient your ammo use is. For example if you go around picking up weapons and ammo then feeding the enemy you'll be doing their ammo gathering for them. That will allow them to focus more on other elements of gameplay like powerups, health or armors.

As most know QW did have one large ammo sink, lightning gun discharging in water. In QW if you fired LG under water it did massive damage and used up all the LG ammo. This was a good mechanic because it was a good way to kill strong enemies and it used up all LG ammo. QW LG was primarily balanced by how limited ammo for it was. LG and Ion Cannon are super powerful underwater due to how slow movement is there. I wouldn't mind seeing discharging in Reflex. This mechanic could be taken further and discharging underwater could not only destroy your own ammo but anyone else's caught in the blast (could be just IC ammo or everything?). Think of it like a chain reaction explosion if you were to discharge under water and catch others. Another idea is what if dropping a backpack full of explosives ammo (rocket/grenade) into lava or slime caused a massive explosion? That would be a similar ammo sink for explosive weapons and add a suicide bomber type tactic (similar to LG discharging in QW). These types of mechanics are still only useful if the map design incorporates them effectively.

What do you guys think?