There is not that much to say about this trophy. Just be aware to die a lot :-P
If you want to follow a guide, i recommend the guide from Mr.POW on YouTube. He shows awesome tactics and more important how to spend your green gel and keys to follow his tactics.
Good luck to you all.
https://www.youtube.com/playlist?list=PLW_kRUHQNhSHPZS0QxQ6D...