Sagara Sousuke 011011001, on 13 August 2019 - 10:10 AM, said:
The one time I saw it, it caught opposite team off guard. Basically they took top and realized no one was there. A few people wandered in to the basement and died leaving the basement team with a 12 v 9.
People don't like to do it because it usually leads to boring games. You often wind up in a stalemate where the only winning move for either team is to do nothing and hope the other side screws up or gets impatient first.
The only time I think it's smart to hole up in the basement is when you're down in kills and trying to make a last stand.