Meme KCG-0000 "Meta Madness" (1xAC20, 4xMPL, 4xSRM2, 1xLBX10, LE350) + alt (AMS, LE300, AC10)

WARNING: this build requires 4 firegroups. Don't even bother if you haven't max skills and/or you don't have easy-to-use/reach firegroups.

The base idea behind this build was to exploit at any cost the -15% ballistic cooldown and maybe even the AC20 heat quirk.

AC20 cooldown will drop from 4 seconds to 3.4s (which couples well with MPLs cooldown + duration)
LBX10 / AC10 will drop from 2.25s to ~1.91s, which is very close to SRM2 cooldown.
That's how I came up with this build.

This build is extremely hot. Use the two different sides depending on the engaged target: if small / fast and pinpoint is required, fire AC20 + MPLs. If target is huge / slow / very close, go for full DPS and high spread LBX10 + SRM2 or both

In case you lose either side, you are going to survive with a 40% cooling efficiency (mediocre at best) if the AC20+MPLs side survives, or a very good 52% cooling efficiency if theLBX10+SRM2s side survives.

Ammo count is low, so doon't be too much trigger happy.

ALT: LE300 version with AMS and +1 DHS, but in case of side torso loss the right side will become even hotter and the left side will become even cooler.

ALT: AC10 version. Not sure if it's worth it for additional pinpoint damage at range.

Recommended skill trees: https://kitlaan.gitlab.io/mwoskill/...c00000000000000e877660e0000800d0600#s=Weapons
Alt skill tree (swap to LBX spread / remove AMS accordingly): https://kitlaan.gitlab.io/mwoskill/...c00000000000000e877660e0000800d0600#s=Weapons

 

You forgot Laser AMS for full Meta