the topic says it, but in case you didn't encounter those maps I'll give a reason:
Whilst they might be OK in non-respawn based game modes it's just a spawn raping party in TDM, one side has a way to strong position in general and above that the same already overpowered side can camp the enemy spawn with ease, it's just crap!
For the lulz I added a vote ... open 7 days
subterra is to be made non-vote able anyways.
//EDIT:
just updated the DB and kicked subterra from the votes.