Minimum rank requirement

this map is used by the game system as a "tutorial map"....

Any fresh player will be directed to join that type of map directly. That is the exception to the rule.

What I've noticed in many of my games is that after a certain amount of time, if the player compliment has not been achieved then what I term "fill-in" accounts come in..

First game ghost accounts that will go AI for inactivity. They are easy to recognize.

Maybe this is what happened