I love Blockwars, but if there's ever a tie, Overtime is typically a bigger stalemate than the events leading up to it. Because all blocks are removed, it makes it super easy to defend, as there's no way for players to sneak into your flag/core unseen. You can't kill the defenders, either, because they respawn quickly enough to prevent you from winning. Respawn times should be greatly increased during Overtime to make it easier for teams to get an upper hand.