Breaking Point V1.0
 

If the next round is the final round and both teams have equal scores, increases the maximum rounds by 2. This obviously allows very longer matches if the teams are specific in that, but it's more fun because instead of pressuring both teams to play the best final round, one team always has an upper hand. This plugin does not work when mp_maxrounds is even, must be an odd value. Also I think this plugin is perfect for 1v1 servers but not necessarily.

There is only one ConVar:

breaking_point_enabled - Default "1" - Set to 1 to enable the plugin, 0 to disable.