Ok, it turns out if might have been a skill issue!
A couple of other points:
* It's not immediately clear which weapon the shard upgrades target
* Two different upgrades have the same name
* It's still great fun
You just have to find the right build.I also started with zombie and melee weapon and it's unreal, because even you're fat. CD 8 secund for your skill and you can't even kill anybody.
