Guild Wars 2

Recently returned to the game and am curious if the following engineer build is viable for WvWvW roaming? I found it long ago and have had it book marked:

http://intothemists.com/calc/?build=-V;4cPFw0c-BRFx0;9;4J9-J928-5;305-5;0a33;3bUytbUytk-ki-M;2a;0aVdWjXn2v3-a0q-Fk1e;9;9;9;9;9;9;0V7s5y

Summary:
4/2/0/4/2 – Healing Turret, TK, BK, Rocket Boots, Supply Crate
Rabid gear across the board with perplexity runes (or undead)
Pistol + shield

I will run either set up:
1) Duo with warrior/mesmer (I run this 80% of the time)
2) Engineer*, Guardian, Warrior, Warrior and Necromancer

Any comments are appreciated. Thanks all.

Change your food to 40% condition duration – that’s for sure.
Elixir Gun can go instead of Rocket boots.
Runes can be easly changed from cheesy Perplexity to Balthazar.
Sigils: Battle + Torment would be better.