Won't work in Raids. The checkpoint system will ignore such a feature. If it is implemented in Raids people will simply just go to Orbit and switch. As a result it is absolutely pointless to even add it to Raids as it slows down the experience. They can't compromise the Raid experience by removing checkpoints to accommodate this feature. They want to promote the Raid beyond the figures they got in the original? They won't do that by removing checkpoints. There are plenty of reasons why people may have to leave a Raid and play it at later time in the day or week. A lot can happen in the time you are not Raiding. They can't lock people out from resuming Raids if they are not using their initial loadout because they deleted or infused a weapon both intentionally or accidentally. It'll be a Strike modifier at most in PvE and an outright restriction for PvP for Trials, possibly Iron Banner and the Competitive Playlist they mentioned.