Talk:Corrupted/@comment-27093653-20151110151408/@comment-71.158.162.159-20160512041426

Viral+Radiation/Heat/Electric (all 3 work well in different areas) is best IF you have x4 Corrosive Projection (or 3x Corrosive Projection+3x Coaction Drift). Otherwise, a Corrosive+Cold combination is best, since the Corrosive procs will reduce the armor of any Corrupted Grineer, and deal the highest bonus damage to Heavy Gunners, Butchers, and Ancients. The Cold deals bonus damage to Bombards and Lancers, and the shields of Moas, Drones, and normal Crewmen (which leaves the only enemy not getting some kind of bonus as the Nullifiers, but their bubble is not affected by damage types, and without their bubble they are decidedly squishy).

However, this is only the case in endless missions once the armor begins to scale significantly (which happens far faster than you'd think/want). In standard length missions, it's best to have 2 weapons: 1 with Corrosive+Heat to deal with Heavy Gunners and Ancients, and one with Radiation+Cold/Viral/Toxin for everything else. This also means that if a certain Shadow decides to show up, you'll have enough damage types to get through his gating.