I use Vanguard, although I rarely use Biotic Charge and Nova.

Powers

• Biotic Charge // F&D/Power Syn./Barrier
• Cryo Ammo // Up to Rank 4 Squad Bonus
• Incendiary Ammo // Damage/Headshots/Explosive Burst
• Nova // Radius/Half Blast/Sustain
• Pull // Radius/Lift Damage/Double Pull
• Shockwave // Radius/Reach/Lifting
• Reave (Bonus Power) // Radius/Recharge Speed/Damage and Duration

Passive

• Fitness // Durability/Barrier Recharge/Fitness Expert
• Assault Mastery // Influence/Weight Capacity/Power Intensity

Weapons

• Cerberus Harrier X. Vindicator. Mattock. I know those the most, so I use them the most.
• Suppressor. I've been leaving this out since I rarely use it.
• Locust. The Ultralight gives me no penalties for weight.

Mods

• Harrier and Mattock // Magazine Upgrade and Stability.
• Vindicator // Thermal Scope and Stability
• Suppressor // Magazine Upgrade and HighCaliber
• Locust // Ultralight and High Caliber

Armor

• Doesn't matter. What looks the best. I usually compensate or just make do.

Squad

I'm going on an "Equality Run", so I'm trying to use every squad member with equal use. It doesn't bother me because let's be honest: I do most of the work. Garrus with Javik, Liara, or James is really good.

Strategy - Biotic Explosions. 'Nuff said. You can do it from a distance. Pull recharges fast. And it works well on Insanity, especially if you die a lot on Insanity (like me.) - Assault Troopers or Husks, I throw Shockwaves. - If my squad has no ammo powers (Javik and EDI, for example), I recommend making one ammo power with squadmate use. IDK, I like seeing the battlefield as a museum of ice sculptures.