I spent nearly 200 hours to make this campaign. If i can note my campaign, i will say the level design is really lower than the official campagn, but there are lot's of funny things that you must try :). And of course, i didn't use tileset.
It's great to play in lans (i made this campaign only for that) or to play with microphone at least.
For the first map, 4 noob can beat it. For the second one, 4 good players are required, and lots of ammo :).
Update 1.4 :
- Added some items in the maps to avoid being out of ammo, even if a friend got a ammopack :)
- The end of level 2 is...better