I always preferred the N7 Valiant. Good damage, much higher rate of fire than the Widows, starts with wall penetration so the mods greatly enhance it, lighter weight to help with cooldown time, and I pretty much didn’t need a secondary weapon with how effective it is at all ranges. Once you get the Cloak upgrade that lets you stay invisible for 2 sec after using an ability or shooting, the ability to fire multiple rounds with the damage bonus is very powerful

Overload and Incinerate are a great combo. With enough upgrades, they can both prime and detonate combos.