I was on patrol in Venus when I heard a battle. Turned the corner suddenly finding a Raid activity taking place with 6 other players. I joined in and helped out. When they eventually opened the gate I was able to follow them in, all the way to the end of the cave. They all vanished to the next part of the Raid and I was left there. Headed back to the gate, it was closed, I was stuck and I could see the gamer tags of another Raid party of six outside. I waited until the opened the gate and left. Should this even be accessible to anyone just doing patrol missions? Should we even be able to see the Raid? Is this a glitch? Has anybody else experienced this issue?