Those scenarios are designed for co-op play. They're harder to get through solo. There are weapons, ammo, wingsticks, bandages, etc. laying around in all of the Legends of the Wasteland missions but you have to find a lot of it because it won't be out in plain site all of the time. In Mutant Bash however, the only places there will probably be any if those items to grab will be on shelves in-between the levels. You can't access inventory like in the campaign. All you have is what you start with and what you can manage to find and pick up. . . Mutant Bash is easier with 2 people especially when you get to the stage where the Kraken appears because one person can concentrate on shooting the Kraken while the other person holds off the attacking mutants. . . .