Camp; questions about rules

[DetroitVelvetSmooth]

With the way the rules are set up groups are disincentivised. So a group of 6 is holding down 4 rooms that have named spawns a la lguk undead side. One 50 mage enters and camp checks, then says "you cant have 4 camps, im taking the frenzieds, b/c section 8 art. 2 blah blah blah." Ok, fine, now we have some down time, thats cool, just being friendly. Now another 49 Necro shows up, same thing, takes the supplier, now the 6 are down to 2 rooms, and there is no challange or fun being had. People get bored, leave, and once again, playing the game the way it was meant to be played is made impossible. Ever had that happen? Should the definition of "camp" be flexible if a case like this went to the GM's?