I will reiterate several reasons tonnage-only should not be used and why the idea scares the {Scrap} out of me.
1. Matchmaking as a whole should not be touched at all until hit registration is fixed, hitboxes are corrected, weapon balance is finished, further class incentives are introduced, and any and all other adjustments to role warfare are made. Every one of those factors has the ability to skew the matchmaker. Really, the matchmaker needs to be one of the very last tweaks to a complete game.
2. Tonnage-based matchmaking would hurt role warfare. We'll see less assault mechs to complement lighter matches and less lighter mechs complementing clusters of assaults. That makes both Assault and Conquest hard to win. A much better way to balance things was to improve the medium class by introducing better chassis, and that just happened. Again, lots of spurious variables that need to be addressed before the matchmaker should be.
3. Premades are a huge problem (both in their favor and otherwise). As long as pugs and premades are playing in the same sandbox, the matchmaker will struggle. We need to wait on the launch module to find out what kind of shape the community takes with it. In the meantime, don't blame PGI for the exploits of Spider lance trolls.
4. The game is constantly changing and will always have effects on the matchmaker. What happens with PGI releases a new light mech? Everyone will want to play it. A tonnage-based matchmaker would then be pulling EVERYONE down in tonnage to compensate. Same with assaults. What happens with a new weapon is released that only works on certain chassis? Same thing. We need a system that's insulated from the ebb and flow of new content.
5. Tonnage-only matchmaking is horribly troll-prone and newbie-hostile. Like I've said before, ELO-based matchmaking makes tonnage the swing factor right now. Not ideal. But tonnage-based matchmaking makes ELO the swing factor, and THAT is going to drive everyone batty nutso. Say what you want about the current matchmaker occasionally putting individuals out of ELO in order to balance a match. It makes no mathematical sense to say that making ELO the random factor will DECREASE the number of "out-of-ELO" matches people have to play. It will increase that number. Then we'll have newbies completely confounded by the unpredictable ELO disparities they face, while high-ELO K/D-obsessed kiddie guilds will step up their sync-dropping in lights and assaults in order to further pad their stats in the absence of having to face (fairly) equal opposition. No thanks.
6. Tonnage-only matchmaking punishes strategy. The game is well-balanced enough to where good teamwork and common sense can still overcome tonnage disparities. We see pictures of it every day.
7. If you're going to make tonnage the sole factor, you run the risk of pulling the one pillar that's really holding this game up: freedom to choose and customize one's own mech. Nobody wants to be forced out of their favorite chassis by someone else's preferences, whether directly through a dropship chat system (TROLL BAIT!) or indirectly through a matchmaking algorithm. Whether people realize it or not, their freedom to run their favorite builds is a design pillar of the game and keeps them here. Removing that and turning the community against each other is a gamebreaker.
Please, PGI, for the love of God, keep skill-based matchmaking and just let people gripe about the edge cases. It's better than the alternative.
Edited by Rebas Kradd, 28 December 2013 - 11:37 AM.