Orcs Must Die 2: Crunch, Nightmare, Warmage, 5 Skulls Guide

A 5-skulls guide for Orcs Must Die 2 Campaign mode.
Level/map is Crunch.
Playing as Warmage, Nightmare difficulty.
PC: A quad-core APU with 1GB VRAM.
OS: W* 7 x64.
Sections:
Start (Wave 1) 0:00
Wave 2 1:59
Wave 3 3:21
Wave 4 4:53
Wave 5 6:28
Wave 6 8:06
Wave 7 9:28
Wave 8 11:24
Wave 9 12:58
Wave 10 14:26
Wave 11 16:04
Wave 12 17:57
Enjoy!