M13 has the same damage and even a higher headshot multiplier and a faster fire rate. If it is for the recoil M13 can also get to almost no recoil with loadouts. It's a lot more stable in mid to long range.
Argentina has won the tournament fifteen times, the joint-record holder with Uruguay. However, they do lead the all-time table, have the highest number of victories and hold various other records. Argentina are the only team to win the title three consecutive times (1945 1947).