What's the most recent build/set up that you've discovered?

Of all the Volus it's the Sentinel that I kinda get. The Engineer is close but it don't have the right flow to me. I guess it's somehow tied to the pacing, casting animation and CDs that makes him appeal to me. Uses Arc Pistol and his little cloak in abundance.

Salarian Infiltrator + Viper with AP barrel, Inced ammo, & Engineering Kit for tech damage.

Took this into a London/Cerberus/Gold with Terminator Force , and it was a lot better than I thought it would be. Yes, the Viper doesn't splode heads easily, but it took down a slew of Engineers, a good number of goons, and did decent enough damage when whittling down Atlas armor. The low cooldown helped me throw Energy Drain around to stay alive (no fitness build).

I was very happy that despite getting a hack on wave 10, we survived. The hack was not THE London Center Hack O'Doom - it was on the ground toward the storefront - but it was tough enough. Mostly this was due to Sinful's Geth Engie tearing up the enemies on the perimeter, but also our puggernaut drew much of the aggro.

So I stayed on my feet for most of the match (outside of the hack and a major dragoon dogpile on wave 11) and would like to let SalMasRac know I actually did some justice to the SI at last.

As for the Viper, it was more fun than I thought but kind of tiresome. After discussing with Sinful I think I'll go for the Indra next time I want a low cooldown SI with sniper rifle.

More of a renaissance than true discovery, we have spent some quality time with the Phoenix Adept recently.
Generally, anything that can put a leash on phantoms is gold (well platinum)!

Build
Play

The Scorpion is for Phantoms and our "smelly friends Dragoons"?

Could you please post a link with the actual build? Thanks.

P.S. As for the gun why not the Valiant?

Geth Engineer + N7 Eagle. I found this weapon synergised nicely with the damage and RoF boost from Hunter Mode, as long as I had a stabilisation module. Incendiary ammo was great for setting up quick fire explosions, and headshots were plentiful.

I may test it without the stabilisation in the future in order to make way for a cyclonic modulator when playing on the higher difficulties, as I'm not really a fan of dying all the time and using gallons of medi-gel.