depends if u got HT's 2 back them up i mean yea some cannons can stop a few units but cant stop tanks or gurds...In the long run offenvie cannon is no use unless on the Cliff on LT at there expo but thats about it....There for Stay with Reavers Zlots goons and HT's....and if ur fealing like a total newbie go car's but if there smart they would of seen u a mile away and counterd....