1) Recently I've remembered that Doom had two types of stacks for each type of ammo - little and big ones.10mm:
Clip and
Box of bullets;
shells:
4 shotgun cells and
Box of them;
rockets:
One and
Box of them;
power cells:
Energy cell and
Energy cell pack.
2) In DoomRL we can take consumables (as they were in original series) and use them later (excluding AoI, of course).By combining all of this, we get new item type...
Ammo packs!The primary idea is that you can carry more ammo without once-per-game Backpack.
Each ammo pack takes only one slot of inventory space. It's loaded and unloaded manually, but really fast - it was made for this purpose, after all. Reload and unload - one stack per action.
*Balancing issues: no mods, no Backpack effects, spawn rate - exotic.
How this may look like:
[e] 10mm ammo chain [250/250]
[f] 10mm ammo (x100)
Now, let they be presented!
10mm ammo chainAppearance:
!Ingame Description: That reminds you about action films you've seen long ago.
Capacity:
250 of 10mm bullets.
Reload/Unload time: 0.4 sec per 100 ammo.
Shells boxAppearance:
!Ingame Description: What a handy thing.
Capacity:
125 of shotgun shells.
Reload/Unload time: 0.5 sec per 50 shells.
Rockets packAppearance:
!Ingame Description: Now that is REAL "boombox"!
Capacity:
25 of rockets.
Reload/Unload time: 0.6 sec per 10 rockets.
Power batteryAppearance:
!Ingame Description: Ampere-hours of pure energy!
Capacity:
125 of cells.
Reload/Unload time: 0.75 sec per 50 cells.
So, ammo packs will be useful for ammo conserving, Ao100 players and for that who doesn't use Ammochain. Rarity of them should prevent gamebreaking.
Addendum:* Can we have something similar for minigun reloading, like 100 ammo per 1.8 sec? And full reload (alternative) will be still 3.5 seconds. Because loading one stack per time just seems more reasonable. Same thing for BFG.