Listed some of these in pm's but so everyone can debate them. Some have already been mentioned in comments but Ill try to full them out with detail.
Head Hunter- Certain players have prices over their heads, so you must kill them, acquire their Specimen Implant. After a set period of the Event being open, all implants collected will be cashed in for a reward. Whether it is 1k cement paste or gunpowder etc per implant or 1 implant = tryk tamed, 2 implant = full flak armor, 3 implant = apprentice metal tools etc.
Arena Fights- Set up a actual area via admins commands (im happy to design and create this) and then hold gladiator fights, 1v1 - man vs dino - tribe vs tribe. The Victors win a prize. Whether it is donated via other tribes/admin spawned/ or a entry fee that goes to a jack pot i.e. 500 metal ingots to enter, winner takes all. MAP IDEA
http://www.airsoftsociety.com/images/8/ ... t-town.jpgBoss Fights- Admin spawn in large arena one of the bosses to fight, defeating it grants max gear. Do world save before tournament so all dinosaurs killed during may be re-spawned maybe? MAP IDEA
https://i.ytimg.com/vi/qzkg8b64ltc/maxresdefault.jpgHide and Seek- Spawned in Dinosaurs that are claimable by anyone, max level with custom colour design via admin commands. Have a special sort of riddle to their where abouts.
Air Drop- Several Small storage boxes around the server with 2 standing torches beside them lite with special gear/loot in them. Preferably enhanced (ramshackle/apprentice etc)