1 minute with an AMR is very slow and you are losing 200k gold with fire ammo. I can get 1 minute clears using Steady Hand Triple Shot with Damage, Electric, Long Range, Critical, Greedy, Homing. With an AMR I can clear in 40 seconds same parts.
@Bor Greedy Killer only triggers on the gun damage kill, not from fire/explosions/melee etc. So use electric ammo with greedy and soul eater farming. End game raid mode consistent Of Code red stages which have a 10% chance for level 100 guns, I would recommend stage 5-3 with 12 rare finders and look for any purple or rainbow rarity guns. Pause and retry the level if the guns are lower rarity. This gives 4 chests right next to each other every 30 seconds and usually nets 2 rainbows per hour. Best weapon tags are Steady shot and Long Range Plus, Speed Shot is a good alternative too. Magnum 329 or 2005m are the better ones. For snipers Muramasa is best but the m147 is ok too. Once you get your weapon you can start the cash/exp farming for on stages 4-4 and 8-6 once you get more max level parts. Until you reach code red endgame just focus on upgrading parts: Fire ammo, damage and capacity. Full burst with Weskers evade cancel is OP but not everyone likes the style of play.
