I'm explaining my thoughts poorly. My considerations:
1) I'm not necessarily saying to remove individual playlists for Halo 2 and Halo 3, but I think there's more tolerance from Halo 3 fans playing Halo 2 than there would be for CE fans playing Halo 3 lol
2) Having too many individual playlists may not be practical for a low population, so combining the playlists in this fashion would be the most fair. You go into BTB wanting to play Halo 3, but you get Halo 4 over and over. Who wins here? Only Halo 4 fans, so wouldn't Halo 3 fans rather have a BTB playlist just for Halo 2 and Halo 3 instead of one that combines all 5 games?
Right now what we have is a bunch of mixed playlists where people are frequently disappointed with what is voted:
1. Big Team Battle
2. Team Slayer
3. Halo 4
4. Team SWAT
5. Team Snipers
6. Halo 3
7. Team Doubles
8. Halo 2: Anniversary
9. Halo 2 Classic
10. Halo: CE
11. HCS
12. Rumble Pit
13. Team Hardcore
What I'd like is something like this, which I think would please a lot of people:
1. BTB: CE/Halo 4
2. BTB: H2/H2A/H3
3. CE: 2v2
4. CE: 3v3/4v4
5. H2/H2A: 4v4
6. H3: 4v4
7: Team Doubles: H2/H2A/H3
8: Rumble Pit: CE/H2/H2A/H3/H4
9. Team Hardcore: H2/H3
HCS is done, so let's scrap the individual H2A playlists and combine it with H2. Team SWAT and Snipers are side gametypes, so I'd like to combine those in a
Team Action Sack Competitive while having a rotational
Team Action Sack Fiesta being what it is now.