Guild Wars 2

I did ac exp first week of the release and it must’ve taken me like 3 hours to complete, bear in mind I was level 40. At level 80 though I can breeze my way through it as I usually run with a coordinated leader that knows the paths very well. Path 2 with the burrows was a struggle with 5 80’s as we could not get the coordination right. Moreover, when I did the same path again with a level 62 and four 80’s it was a lot smoother, it is all about coordination.

So I have recently started to grind SE to get toughness gear and I can’t seem to run the first path efficiently enough. From what I understand you absolutely need a thief to AOE stealth the group to avoid the grenadier patrols. Furthermore, is it intended that the grenadiers patrols to keep spawning? The only way to do the first boss is to kill the patrol and leave one alive, then have one person kite the patrol while the other four kill the boss. Is the boss a dps race? are we suppose to kill it before the patrol spawns? And the second boss sometimes the patrols spawn and sometimes it does not. Are there any bugs in the path I should know about?