Not sure if other guilds/ops are having this issue, but, the first boss in EV is non-functional. We have successfully taken down the towers multiple times with different resets and different owners of instance. If there is not a mass crash to desktops then the boss does not spawn. We may on occasion and certainly have seen the fact that the tower down's have been acknowledged by game/boss and yet no boss to actually combat. Additionally ppl get stuck IN the towers so this is a problem. Overall this needs to be corrected. It is the only Ops instance implemented currently so I am aware that there is likely going to be issues. But the game is live, ppl are looking to do this content and not matter what options are used it is currently un-complete-able. Please give this issue the highest level of importance.
The only time boss doesn't spawn for us is if we die to the turrets then go back in. One shotting the turrets and boss has always spawned for us.