
I recently bought the 4P, strapped 9 MLs with STD 260 and lots of DHS. Here's my build:
http://mwo.smurfy-ne...7626b7315e0444a
Pretty standard and cheap but does the work just fine. I group weapon 1 for all weapons, weapon 2 with my arm lasers. No need to chain fire, pop out to deal alpha strike, do another one then pull back.
What happens is this, when you are over heating, use weapon 2 to temporary add some damage while cooling down. When a fight erupts, take opportunity to flank enemies, going for their rear or legs. 9MLs is not to be laughed at.
Lastly, learn to torso twist or protect your hunch back. I usually want to lose my left arm first, then my right arm, then try to spread the damage onto different parts of your mech.