Round 1

Full House

For each Ammo available, [Peacekeeper]'s primary fire gains 1% increased damage, up to 25%.

Power

Armored Vest

25 Armor

1,500

Survival

First Aid Kit

25 Shields

Reduce the time before your Life begins regenerating by 33%.

1,500

Survival

With Full House, you'll get an early damage bonus out of the gates. If you play carefully, Armored Vest and First-Aid Kit should protect you from getting picked off early.

Round 2

Plasma Converter

10% Weapon Lifesteal

1,000

Weapon

Talon Modification Module

15% Weapon Power

6,000

Weapon

Weapon Grease

5% Attack Speed

1,000

Weapon

Compensator

5% Weapon Power

1,000

Weapon

I'd suggest Talon Modification Module for even more damage on top of your Full House Power. I also find that Weapon Grease helps Fan the Hammer especially. You can also get Plasma Converter with Compensator to start you off right with your Lifesteal, but only if you have the Cash for it.

Round 3

Hot Potato

[Flashbang] adds 3 extra Ammo on hit until [Peacekeeper] is reloaded.

Power

Armored Vest

Sell

25 Armor

1,500

Survival

First Aid Kit

Sell

25 Shields

Reduce the time before your Life begins regenerating by 33%.

1,500

Survival

Shieldbuster

5% Weapon Power

After dealing damage to Shields or Armor, gain 15% Attack Speed for 1s.

4,000

Weapon

Quickload Chamber

20% Reload Speed

Reloading within 6m of an enemy adds 20% of Max Ammo as extra Ammo.

4,000

Weapon

The gloves come off here, and the other boys roll in with Hot Potato and Quickload Chamber. Only get Shieldbuster if you have enough for it.

Round 4

Plasma Converter

Sell

10% Weapon Lifesteal

1,000

Weapon

Competitive Analysis

20% Weapon Lifesteal

Deal 15% increased primary fire damage to enemies in the Damage role.

11,000

Weapon

Because Competitive Analysis gives you the Lifesteal you need for this build, you can invest more resources into damage.

Round 5

Just Roll With It

[Combat Roll] gains additional 25% damage reduction and heals 30% of your Life over 3s.

Power

Shieldbuster

Sell

5% Weapon Power

After dealing damage to Shields or Armor, gain 15% Attack Speed for 1s.

4,000

Weapon

Codebreaker

15% Weapon Power

Ignore 50% of Armor's damage reduction.

9,000

Weapon

At this point, Just Roll With It. No, seriously. That's what I always do from here.

Round 6

Weapon Grease

Sell

5% Attack Speed

1,000

Weapon

Compensator

Sell

5% Weapon Power

1,000

Weapon

Aftermarket Firing Pin

10% Attack Speed

5% Move Speed

3,750

Weapon

Round 7

Barrel Roll

[Combat Roll] takes you 50% further and deals 65 damage to enemies.

Power

Eye of the Spider

25% Weapon Power

Deal 10% increased damage to enemies below 30%% Life.

14,000

Weapon

Do a Barrel Roll!