Honestly, I didn't find the mod to be very hard at all. If anything I noticed a few bugs, like the list of clan mechs available for purchase didn't update after a bit. The other really, really obnoxious one was that an updated building model would explode when a mech walked close to it, and it'd invariably take out the mech and the surrounding entire 3 city blocks.

Overall I found the game to be not hard at all, stock and modded. The trick to everything is to pull small groups of enemies and deal with them individually. Mechs are the easiest, just hold numpad 8 when you click to attack so they'll aim for the cockpit. A few shots with PPCs and you have a perfect mech to salvage.

Two things I wanted to mod in. First, give the stupid repair bays and repair trucks a lot more resource points. Having a repair truck run out before it's done patching up even half of my badly mauled Zeus was obnoxious. Second, I want the clan heatsinks to be purchasable in the customization menu.