Alright, let's break this all down and see what's up with mediums. This should allow us to target specific goals to specific mech attributes and get us some productive ideas.
Role:
Stuck between a light and a heavy, instead of being the generalists that lore describes them as, mediums are in fact much more focused. A medium mech needs to be able to go 90kph+, and deliver at least 30 point alpha (or corresponding DPS). As a generalization anyway; true results will vary by pilot.
The reason is that mediums lack the speed to **** that lights have, and the armor to soak hits that larger mechs have. Their only possible trade for these is mobility and firepower. A medium needs to be able to simultaneously move to a new position very quickly, and bring enough firepower to hurt when it gets there. If it can't do both these things, it should be a Light or Heavy isntead. This makes them ideal for supporting teammates, hit and run, flanking manuevers, and fast strike teams (wolf packs).
While mediums CAN do such things as brawl and long range snipe, they are outclassed by other chassis in every case except the fast striker described above. These roles should thus not be the focus of medium mech balancing.
Durability:
As mentioned by others, the 'best' medium at present is generally considered the Shaq. 2nd place varies heavily, but generally is either the Hunchback or Centurion. Why?
In the case of the Shaq, it's because it gets Hunchback like firepower with greater mobility- aka JJ. Alternately, it's able to sidestep the limitations of the medium class by being a pure sniper, which is actually the majority of it's use in my experience. That's hardly a glowing recommendation, since it's basically playing as a weak Jager with JJ.
The Centurion is known for it's durability, which comes from two features: the shield arm, and the torso mounted lasers. It's not ACTUALLY more durable then other mechs in terms of stats, but it's able to spread damage out very well while maintaining offensive power. This makes it's combat-effective lifespan rather long.
The Hunchback features incredible twist range and also good durability, but it gets it's resilience from a different source. Hunchies are small and compact and damage naturally spreads out due simply to their small size. If they were larger, like other mediums, they would be devastatingly weak because they're arms can't effectively block the torsos.
Firepower:
Most mediums rely on either massed, smaller weapons (old CN9-A, Hunchie P, Streaktaro) or a single large weapon with backups. This reflects both their weight limitations and the increased options from light mechs. Neither of these strategies is necessarily bad, but it's useful to be aware of them and why they exist.
While they can sometimes be in competition with lights for firepower (JR7-K), mediums get more tonnage to use instant impact weapons (PPC, Ballistics) or longer range weapons (LLasers, LRMs). This results in an increased ability to APPLY damage, even if the paper-sheet alpha and DPS don't make a huge leap over the Jenner.
Conclusions:
The number 1 balance factor is pilot skill - as fast strikers, situational awareness is deathly important. Medium mech's are not a good choice for novice pilots. This is not a bad thing since so many other options exist.
Mediums MUST have mobility. Speed, turn speed, twist range, and twist speed. This is essential for their combat role, and also the key to their durability. High agility makes it much easier to spread out damage. A high agility/speed ratio is essential for medium mechs. Articulated arms is also a plus, since you can maintain accurate aim while twisting rapidly for defense. More chassis need to be JJ capable as well, to give them a mobility edge over Heavies. Increased JJ height (a smidge closer to light mechs) is a possibilty as well.
Mediums need a variety of hardpoints in multiple locations. Because they rely on damage spreading for survival, a medium pilot should expect to get peeled away like a banana before they go down. Concentrating firepower into one location is debilitating (every hunchback pilot knows why). Also, they usually lack the tonnage for large weapons. Multiple energy hardpoints, multiple missile hardpoints with 4-10 tubes, and a scattering of ballistics hardpoints are what to look for.
-In addition, mediums would benefit immensely from mid-weight ballistics weapons. Currently, there is nothing in the tonnage range of SRMS and Energy weapons except for the AC2. Adding some new weapons- Light Gauss, Heavy Machine Guns, Standard (non-auto) Cannons, etc - would help balance these mechs. Damn the timeline, this is about gameplay balance.
Mediums need to be medium-sized. A look at the popular mediums reveals why. One is being used like a heavy (Shaq), one has good hitboxes to spread fire (Cent), and one is small (Hunchie). All other mediums tend to go down very quickly. A rescale on mech's like the Kintaro, Trebuchet, and Shaq is thus essential to balancing these chassis.
Edited by RandomLurker, 06 November 2013 - 12:18 PM.