People seem to assume that C3 was some magic box that allowed LRMs to be fired indirectly, but this is not the case. LRMs have ALWAYS (well, since The Battletech Compendium, at least) had the ability to fire indirectly, with the aid of a spotter.
What C3 ACTUALLY did, was allow Inner Sphere mechs to compete on a nearly even footing with Clan mechs, in terms of weapon ranges.
Yes, they payed a tonnage Tax (5tons for a Master unit, 1ton for a Slave unit), but it allowed them to fire Long Range Shots as though they were Short Range shots, provided a member of the C3 Unit was within Short Range.
Now, in TT, this meant that the Weapon Skill Modifier was reduced from +4, to +0. I realise that MWO is based on "Skill", rather than random Numbers, which is why, if C3 were to be implemented, what it would actually do in MWO would be more to extend the Optimal Ranges of a weapon.
The closest comparative I can make, is that in TT, if you fired an AC20 at a Target 9 hexes away, you got a +4 modifier to hit. If an ally within 3 hexes of your target was on the same C3 network as you, and you fired that AC20, your modifier would be +0, because you're using your Allies Targeting data (ballistic trajectory plotting for autocannons and improved beam coherency for lasers, due to multiple data reference points, not to mention the 5 tons of processing power on the command mech).
To translate this into MWO, how I would see it working would be, if a C3 ally was within 270m of your target (and they had the same target locked), YOUR AC20 would hit as though you were within 270m, dealing full damage. Even if you were up to 540m away. Basically, C3 would allow you to calculate your Optimal Range based on the nearest C3 equipped Ally. That said, Line of Sight and Maximum Range restrictions still apply. Food for thought.
TL:DR. Please stop blaming the poor C3 unit for LRMs. It was designed to buff all weapons, and would balance IS against the Clans nicely, if PGI ever decides to implement it.
Edit:Spelling
Edited by Thunder Child, 20 August 2014 - 12:20 AM.