Will definitely be more fun on mutant now.
I kind of liked having large maps with only a few players, but I guess it depends on one's definition of "few". Five or more is fine for them IMHO,since you get to hunt resources and become bloated wit mour and ammo,then fight as titans when you do find an opponent. 200+ red armour,300 cells for the shields and 300 bullets for my chain gun remains Too Much Fun.
Would it be possible to remove the min player count on MINTRO? I've actually had a few 1v1s on it (after the others left) and I personally don't see it being that big of a map where you need a min X amount of players on it to have fun on. The teleports greatly help you maneuver the map quickly.