Just did this at +1x4 on a level 32 katana/bio scrapper and on a team at level 30 +0 with an exemplared IO'd em/bio scrapper. Solo, I died twice to the EB's at the end. Could not survive even their normal attacks on a long term basis. New cheese strat discovered though. You only actually need to kill the named EB. The remaining ones just become untargetable/stop moving when you do and the mission is accomplished. On the team, I think most everyone else was at the natural level for the mission, and we came close to wiping at the Ward turning on us/Clarity escort part. You face enemies on two sides and it is hard for the tank to aggro manage both the ambush and Ward's summons. The EB part we handled no problem though. It is just a hard mission. Personally I like this mission but I was playing fairly meta/built stuff (I have been IOing a lot of my powers as I level on the katana scrapper. She's a self contained Praetoria solo character with no seed money for a true lonely experience, lol.