• Allow lots of spraying
  
• Relatively high damage even without headshot
  
• Large ammo capacity
  
• Benefits the team

• Large magazine and ammo capacity
  
• Allows you to deploy bipod
  
• High rate of fire

Barrel ext
Stubby / The tank compensator (extra damage, stability)
Bipod
Lion bipod (press 4 to deploy)
Boost
+4 stability (optional)
Gadget
LED combo (extra stability, LED / flashlight)
Stock
Plastic stock (extra stability)

• High damage
  
• High rate of fire
  
• High accuracy

Barrel ext
Stubby / The tank / Ported compensator / Fire breather nozzle (extra damage, stability / accuracy)
Boost
+4 accuracy boost (optional)
Foregrip
Moscow special rail (extra stability)
Gadget
LED combo (extra stability, LED / Flashlight)
Sight
Any sight (extra stability)
Stock
Wooden sniper stock (extra accuracy) (prefered)

Electrical brass knuckle
Stun enemy
Concussion grenade
Stun enemy
Improved combined tactical vest
Heaviest armor

According to your own play style, choose the deployable

• Doctor bag
  
• First-aid-kit

Differences of doctor bag and first-aid kit:
Click here

Allows you to revive your teamate by simply yelling at them
Allows you to bring 14 medkits
Allows you/your teamates automatically use the medkits deployed on the floor when they are out of hp (20 sec cool down, 5 meter range)
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Swap to this for doctor bag:
Allows you to bring 2 doctor bags with 4 charges each
Allows you to wear heaviest armor
Recovers your armor when you perform headshots
Allows you to deal with shield more easily
Increases your ammo pick up range
Gives you extra ammo for every 6th kills
Gives you extra damage, defence during close quater combat
Gives you extra weapon stability and accuracy
Increases weapon magazine size
Allows your weapon to penetrate body armor
Allows you to hip fire while sprinting
Increase your reload speed when you kill 2 enemies (40% - 100%) (depends on ammo remaining in magazine)
Increase damage dealt to enemy body (shoot enemy's body deal 90% damage of headshot)
Allows you to run faster and last longer
Allows you to run even faster when you break your armor (5 sec duration)
Allows you to get rid of taser by interacting within 2 sec

As you will be dealing lots of damage, perk deck used here will take benefits from it.
Funtion: gain a protection shield for whole team
protection shield (showed in blue color around your hp) will reduce incoming damage
How to activate: keeps dealing damage to enemy
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