I think what you're looking for is a balanced build rather than a Jack of all trades. You'll wand
some specialization, but taking aspects that cover each others weaknesses.
Let's take my time-proven
Stalker 5S for a minute.
The build uses a weapons configuration for seamless multiple range coverage. Twin LRM10s to hit targets at long range and behind cover with indirect suppressive fire. ER Large Lasers melt any armor at direct range at even longer distances that LRMs can actually hit at. The hit scan properties combined with the burn time almost guarantee you to hit for at least some damage with each shot fired. The two pairs of Medium Lasers will tear apart any 'Mech that gets too close for their own good and the twin SSRMs will assist in opening up their armor for the kill as well in hitting fast moving targets.
The twin AMS are invaluable in shooting down the popular macro-salvo LRM spams that are used quite often in a lot of builds (popular in most Stalker missile boat configurations), the benefits of BAP assist this build in almost any way (enhanced sensor range: better missile locks and improved target identification, faster target information gathering: improved target identification and faster detection of any weak spots in the enemy armor, counter-ECM: SSRM locks against ECM targets and breaking ECM blankets when engaging priority targets to supply the team with better locks).
This configuration allows the 5S to perform in a transition-role, capable of acting as both a front line fire support 'Mech as well as a heavily armored spearhead, switching between the roles as the battle progresses.
TAG and NARC, as support equipment for Missile weaponry, are usually used either by scouts (where NARC is almost exclusively used, because of the way it performs as well as its limited range) or the missile boats themselves. I've seen some people use TAG as a hit confirm weapons as some maps suffer from bad hitbox scaling. If the TAG doesn't hit, neither will the other weapons. On any other 'Mech they aren't exactly wasted, but you'll likely find a better use for those hardpoint locations. Multirole 'Mechs usually benefit from BAP, but finding enough tonnage to fit in in is often more difficult that it might sound.
EDIT:
I went ahead and made a quick mock build of your design with some alterations to a best of both worlds configuration. [
http://mwo.smurfy-ne...e0003502831b6c5 ]
TAG perform as a hit confirm for your Large Laser as well as to support your ALRM10 with improved spread and to break potential ECM. You also have some zombie capabilities with the Medium Laser mounted in the head. It's nothing final but it might not be too far off of where you wanted to go.
Edited by SethAbercromby, 25 May 2014 - 05:43 PM.