So I did the first 3 episodes of Spartan Ops, When I go to find a game in the Spartan Ops Lobby, It still shows the five chapters from Episode 3. I can play the 4th episode by myself, but how do I find a game to play with other people online for the 4th episode?
You can only play online matchmaking with the episode 343 has made a available for the week. They are going through them all again before the next set is released.
You will have to play with friends via invite if you don’t want to play solo.