So I've been trying out some of the other user's modmaker mods and found one I really like, Diamond Difficulty. For the most part, I feel like it's a fair difficulty upgrade (no super geth prime cannons). It's by Kami-Sama_FR.
http://me3tweaks.com/modmaker/mods/302
[BBvideo]http://youtu.be/Fb6GJ13AVmI[/BBvideo]
Has anyone been able to legitimately beat it yet? I've come really close with 2 different teams, one including TheNightSlasher (one of the top 10)... once you get used to how enemies work its just a ton of fun. I just finished wiping at the end of wave 10 to a stupid combat drone..!