Sandpit is correct that it's a choice of trade-offs.
If you disagree with that, you're wrong.
If you disagree with the trade-offs being equal, then you might have a point.
But at a fundamental level:
Ballistics pay "up-front" in the weapons weight and crit slots itself, and you must carry ammo. In exchange, they need less heat sinks.
Energy weapons are "cheap" on their own - they have low weight and crit slots. but you need to pay a lot in heat sinks.
The challenge in balancing ballistics vs energy weapons is gettnig these trade-offs to be fair.
The table top "ideal" example might be AC/10 vs PPC (3025 Tech, no Double Heat Sinks)
PPC: 10 damage at 90-540m every turn, needs about 10 heat sinks to work optimally, total 7+10 = 17 tons.
AC/10: 10 damage at 0-450m everye turn, needs about 3 heat sinks and 2 tons of ammo to work optimally in a typical engagement, total 12+3+2 = 17 tons.
These weapons are roughly equal just looking at this, but unfortunately, in practice the AC/10 has a big disadvantage in the tt, which is ammo explosions. FASA was close here, but not perfect. I guess they thought simulation trumps balance.
And of course, once all the powergaming features got into Table Top, and Level 2 Tech and Clan Tech were introduced, the classic auto-cannons became obsolete, you needed the new kids on the block to compete with double heat sink enabled mechs (Ultra, LBX, Gauss). (At least FASA realized that DHS ruined classic ballistics and introduced new ones, still I have a great distaste for the power creep.)
Anyway, back to the world of mechwarrior online.
The fundamental nature of the trade-offs is still the same. Energy weapons need more heat sinks. Ballistics need ammo and are heavier and bulkier.
Are the trade-offs still fair? Does the extra weight ballistics pay for the weapn and ammo equal to the extra weight of heat sinks required? What about pinpoint damage, convergence and all that?
That's something you can discuss.
The heat/heat sinks/ammo aspect of the discussion I tried to cover with a
mathematical model, but for the convergence/pinpoint aspect I lack the necessary mathematical equipment and statistics to help us (without wanting to claim that my mathematical models for the heat/ammo/weight component are perfect, but as long as no one else bothers performing and sharing such an analysis...)
At least that aspect suggests that the low range energy weapons can be competitive to ballistics, but at longer ranges, ballistics tend to dominate, especially the longer the fight goes.
Edited by MustrumRidcully, 08 November 2013 - 01:39 AM.