how do i unlock a BRINKS combination lock? i forgot the combination. no master locks please?

Answer 1

with a hammer and a punch right between the hoop

Answer 2

Kiss the lock good-bye by going to your local fire dept. They have the worlds best bolt cutters. The lock will not shear, the lock swing arm will literally explode when these cutters touch it.
The expensive way to save your lock is to go to a locksmith and he'll call the code in and they will mail you a key. Be prepared to show a receipt for the lock as you'll be required to show ownership before any action is taken.

Answer 3

Bolt cutters.