If they are zerging with lights, call which side they are coming from and have your team engage as soon as they jump over the gate. Focus on legging mechs and then move on to another target, a legged light mech is ZERO threat to your orbital cannon and your base defenses are more than capable of mopping them up for you. If they stop to fight you, you've effectively broken their rush to the base. If they try to ignore you it is incredibly easy to leg lights that you are chasing in a light mech.
If the enemy team is not running a light mech zerg rush, group up your team of 12 lights at a gate and jump over together. Focus down assault and heavy mechs first before working on mediums then lights. You will often be able to take out 2-3 mechs very quickly with proper focus fire.
From my experience so far, worst case scenario it is an even trade (or close to it) of 12 mechs to 12 mechs except for the fact that you've only lost a very small percentage of your tonnage compared to all the assaults and heavy mechs the enemy team just lost.
Best case scenario, the enemy team split up to attack more than one gate. You can wolfpack down one group before moving to crush the other group. In one match, our team was able to kill off 15 enemy mechs including several assault and heavy mechs before we lost our 1st light mech.
Taking the fight to the enemy is a great way to catch the attacking team off guard and gain an early advantage while still being very capable of defending against a light zerg rush.
Pro tip: Nobody brings streak boats in a first wave attacking force.
Updated with new video
Edited by pwnface, 30 December 2014 - 04:31 PM.