The Chaos Minions( edit: I mean LBs, never saw its more powerful cousin, chaos minion, there so I thought he was talking about LBs ) were one of the main reasons why the PM mines where fun place to hunt. Without them its just another boring no risk exp farm. At least put in some mutant patrols to breakup the monotony.
One thing that really needs to be changed is the Boss Room in team missions. Having the group zone up into the middle of a closed off room filled with monster is possibly the most unoriginal way to make the final area challenging.