The 5N is a solid little LRM platform that really shines will a few lostech upgrades. The key is to have patience and only take shots you are reasonably sure you will hit. TAG and Artemis IV in concert really improve missile spread for devastating results. Also remember that TAG negates ECM as long as you're outside the bubble. (If you're inside the bubble you're inside LRM minimum range anyway.) I routinely top the charts with 500-700+ damage. The BAP (not listed in the shortened loadout) could be switched out for AMS or an additional ton of ammo and extra armor. I prefer the BAP because combined with the advanced sensor range module it gives an quite usefully larger window for targeting mechs under ECM.
I am going to try this loadout on my TBT-5M to see how it works. It obviously won't beidentical due to the 5M's Jump Jets but you've given me a starting point. Thanks, Mythweaver.