User blog comment:Bluegear93/Volus/@comment-24174486-20121010152606/@comment-24174486-20121011175727

The Volus Engineer is awesome. Spamming mines lets you set up groups of enemies for massive damage, especially if you can get teammates to strip away tougher enemies' protection before they stumble into your trap. I haven't actually used Shield Boost that much, but Recon Mine is really useful: its cooldown time is a little painful and it takes a few seconds to activate once it's fired, but it reveals enemies near it, is manually detonated, and does a ton of damage. It has a very attractive debuff to scanned enemies evolution once it reaches Rank 6, which should go along nicely with Proximity Mine's Rank 5 debuff evolutions.

Also, if you have the Acolyte, the volus's inability to take cover becomes one of their greatest strengths. It's easy to launch the Acolyte's projectiles over low cover, especially if you have a Recon Mine set up on the other side. Their cloaking ability also makes the Acolyte a good weapon for them, since their "melee" cloak doesn't break when using weapons.