Alright, so I'm working on an Invasion map, and I've pretty much finished. Everything was working perfectly when I did a solo run, but as soon as I did a playtest with other people in it, the spawning broke down. Instead of spawning in the Invasion respawn zones, players respawn in the Colosseum, Coastline, Pillar or Island areas, which are outside the map's safezones. What am I doing wrong, and how do I fix it?
Do you have them set to specific fire teams and their labels set up correctly? Set the spawn sequence to 3 if you want everybody on the team to be able to spawn on that spawn area. Here's a tut for invasion I have, go to about 7 minutes for spawns. YouTube - Reach Forge Tutorials Ep 3: Invasion Part 1/2
Hill markers are used as respawn zones chiefly for the convenient arrow they have, as Rifte pointed out. However, pretty much any object (such as regular respawn zones) can be labeled as Invasion respawn zones. Like Rifte mentioned, you want to make sure you have your Invasion Respawn Zones labeled for their appropriate phase and their Spawn Order values set. Correctly setting them up should correct the problem. If that doesn't work, there might be an error elsewhere, but without doing a forge-through and checking your gametype options, I can't help you much.