(shudders at credit card burn out)
I beta'd AOL before and after they went flat rate. During that time I had to keep track of my usage credit time so as not to go over and get charged.
As for the Atlas, poor thing. Banshee, one of many assaults, usually took care of it, followed by Cyclop, Stalker. Then to tick off an Atlas pilot even more, take it down with a heavy, medium and a light, especially a light.
In the Solaris venue, range weapons were used quite effectively and many pilots did not always kill a mech outright but simply picked it apart, either by stripping the LR weapons, or legging it to slow it down first then stripping the weapons, all the while back peddling and torso twisting to spread the damage and protect vital components. Light vs Light is the only engagement that became a brawl at the onset, except for those with the LRM locusts or panthers

.
I am no knowledge of how unit movement was conducted in the MW leagues but MPBT saw high usage of unit formations and instructions (less as the unit and the pilots within it gain experience).