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Ammo Drum: Drop sources, locations, and probabilities

Tips

There are many ways to get Ammo Drum in Warframe, but my recommendation for optimal efficiency would be to try one of these missions (in this order):

  • Earth/Mantle : It's a Capture mission (level 2-4). Probability to get it: 11.06%.
  • Venus/Venera : It's a Capture mission (level 5-7). Probability to get it: 11.06%.
  • Mercury/Elion : It's a Capture mission (level 7-9). Probability to get it: 11.06%.
  • Mars/Ara : It's a Capture mission (level 10-12). Probability to get it: 11.06%.
  • Phobos/Skyresh : It's a Capture mission (level 12-14). Probability to get it: 11.06%.
These recommendations are based on the usual missions lengths, and the probability of getting the resource dropped.

Missions with a Chance to Get Ammo Drum as a Reward

Planet / Mission Type RotationProbability
Earth / Mantle Capture 11.06
Lua / Copernicus Capture 11.06
Event: Saturn / Phoebe Capture 11.06
Europa / Abaddon Capture 11.06
Saturn / Cassini Capture 11.06
Uranus / Ariel Capture 11.06
Event: Uranus / Trinculo Capture 11.06
Neptune / Galatea Capture 11.06
Pluto / Hydra Capture 11.06
Eris / Isos Capture 11.06
Event: Pluto / Corb Capture 11.06
Event: Eris / Cosis Capture 11.06
Jupiter / Ananke Capture 11.06
Event: Europa / Cryotic Front Capture 11.06
Event: Europa / Beleth Capture 11.06
Mercury / Elion Capture 11.06
Venus / Venera Capture 11.06
Event: Phobos / Todd Capture 11.06
Phobos / Skyresh Capture 11.06
Mars / Ara Capture 11.06
Event: Phobos / Limtoc Capture 11.06
Event: Mars / Quirinus Capture 11.06
Ceres / Lex Capture 11.06
Event: Phobos / Drunlo Defense A 9.09
Phobos / Gulliver Defense A 9.09
Mercury / Lares Defense A 9.09
Europa / Valac Spy A 9.09
Event: Ceres / Egeria Defense A 9.09
Venus / Tessera Defense A 9.09
Mars / Spear Defense A 9.09
Saturn / Dione Spy A 9.09
Event: Saturn / Aegaeon Spy A 9.09
Jupiter / Amalthea Spy A 9.09
Earth / Lith Defense A 9.09
Ceres / Casta Defense A 9.09
Ceres / Bode Spy A 9.09
Event: Ceres / Varro Defense A 9.09
Venus / Romula Defense A 7.37
Mars / Kadesh Defense A 7.37
Earth / Coba Defense A 7.37
Jupiter / Sinai Defense A 7.37
Europa / Larzac Defense A 7.37
Sedna / Sangeru Defense A 7.37
Eris / Akkad Defense A 7.37
Ceres / Seimeni Defense A 7.37
Pluto / Sechura Defense A 7.37
Event: Phobos / Opik Rush A 2.21

Warframe Rotations Explained

  • Defense: One reward every 5 waves, following this pattern: AABC.
    So, rotation A reward at 5 and 10 waves, B after 15 waves and C for 20 waves.
    Then it starts all over again.
  • Rush: Number of transports destroyed:
     - Rotation A: one.
     - Rotation B: two.
     - Rotation C: all three.
  • Spy: One rotation level gained per vault unlocked.
    First vault is rotation A, two vaults is rotation B, all three vaults unlocked is rotation C.


Mobs Dropping Ammo Drum

Ammo Drum can be dropped by most ennemies in Warframe. You should probably consider this as your primary farm source.