So I have two ideas like the title says. My gf was playing a raid with us and asked why there wasn't friendly fire to add a challenge. I have to agree why not? It would force us to coordinate more and play as a team. Sure there will be team killers but you can easily kick them and spread the word on them over lfg pages (since we don't get optional matchmaking) this would also only occur on higher difficulties. The second idea is from warframe. Give us an option to build a clan hangout (like a special place on a planet or in the tower) that we can use materials and glimmer on to add places like personal vault access, a cryptarch etc. It would be a clan social place. I think these would be excellent add ins