AoMr ways: Anti-Freak Jackal, blaster(but you need to deal at least 13 damage to overcome armor,so P-mod + SoG3 + lots of time), energy pistol(again at least 13 damage), demolition pistol.
AoSh ways: plasma shotgun, plasmatic shrapnel assembly.
Shockwave packs, hellwave, phases.
Remember that you also need to leave the level, so at least two phases.
Now that i think about it, the easiest is probably to assemble energy pistol on AoMr.Start with tech mode, win arena, find one more P-mod, take WK1 and SoG3, stock on cells, as you need A LOT to carve your path.