I've been searching for a good Pure Strategy Map since the latest changes, and this is solid.

PROS:  It's Omenak, the GOAT! what's not to like! Best gear, lots of chests to grab.  I could see this being the Pure Strat Meta at some point

CONS: Craashes...sorry Omneak; but I hear if you run it 64 bit on launch it never crashes. 

Party: 1 Tower Boost Monk, 2 Summoners with guardian pets (huntress/monk) or if you want to run 4 Splits, add in another summoner with dual app guardian pets, oddly 4 splits was faster kills, so If you can, run em all.

Hint 1: is where the stack of towers goes, but also note that the buff beam goes from the ledge on the East side, to the floor on the West side, so we can be sure to buff the traps.

Hint 2: Minion Walls keep the mobs off the towers, each wall is like 1 of each type minion from wall to wall.

Hint 4: Build order matters (unless they fixed the glitch)  Make sure to build traps and buff beams and upgrade the beam touching the traps, before building the nature pylon.  Nature pylons have some weird interactions with traps and can prevent them from being buffed, if build out of order, so save nature pylon to the end of the build.

Waves after 30 start to get a little thougher, make sure your Tower Boost is reset right around 4500-5000 mobs, so you can run it full into the end-of-wave burst.

This build is for Nightmare difficulty, which has 7-8K mobs per wave, so with the Pure Strategy 100% armor drop modifier, works out good.