Optimus's pack and Megatron's pack all live on the same heavily protected game reserve, thats large enough to support both large packs with too much conflict from either side, so they dont fight as much.

All the G1 Transformers, everyone is Dragons Autobots Optimus Prime, Bumblebee, Brawn, Huffer, Cliffjumper, Gears, Ratchet, Ironhide, Jazz, Sideswipe, Sunstreaker, Mirage, Wheeljack, Prowl, Bluestreak, Trailbreaker, Hound, Hauler, Jetfire, Windcharger, Inferno, Grapple, Hoist, Red Alert, Tracks, Smokescreen, Perceptor, Blaster, Warpath, Cosmos, Beachcomber, Silverbolt, AirRaid, Slingshot, Omega Supreme, Powerglide, FirstAid, Seaspray Steeljaw, Ramhorn, Rewind, and Eject Decepticons Megatron, Starscream, Soundwave, Shockwave, Thundercracker, Skywarp, Knockout, Breakdown, Ravage, Laserbeak, Rumble, Frenzy, Buzzsaw, Ratbat, Scrapper, Hook, Bonecrusher, Scavenger, Mixmaster, Long Haul, Cyclonus, Scourge, Galvatron