Beside the FreeForAll servers and the scene around it there are a few more scenes. For example the Minstagib Scene or also the competitive scene.
Mention what “competitive gameplay” means
Mention the places where one can try it out (ladder, tourneys sometimes, pickup channel)
Mention the ladder servers (btw, find out which servers the NA community usually uses for this)
Mention the differences between FFA and ladder servers:
shoot from center/eye
splitted game into warmup/match stage
forced respawn
fbskins
no mirror-damage, full team damage
timelimit, no frag/point limit