I only need the 2nd echo recorder, and to kill him in under 5 minutes ( can't find a good group)

I need more details on where the 2nd is I've been told 2 things and/or heard:

Its in next to a canister
And its when you hit the first island

Is it when you enter the driving part after setting all the charges and its the first big major island area?
And also Is it possible to find a world chat or something so I can find players who are interested in killing him quickly too?