Here is a small guide that I will try to update when I add new weapons etc, either way hopefully this helps a bit.

• DAMAGE: 7
  
• MAG CAP: 7
  
• MAX AMMO: 42 (82 PERK)
  
• FIRE RATE: 0.1
  
• AMMO COST: $50

• DAMAGE: 18
  
• MAG CAP: 30
  
• MAX AMMO: 300 (600 PERK)
  
• FIRE RATE: 0.1
  
• AMMO COST: $400

• DAMAGE: 30
  
• MAG CAP: 30
  
• MAX AMMO: 300 (600 PERK)
  
• FIRE RATE: 0.105
  
• AMMO COST: $1250

• DAMAGE: 10
  
• MAG CAP: 25
  
• MAX AMMO: 150 (300 PERK)
  
• FIRE RATE: 0.11
  
• AMMO COST: $150

• DAMAGE: 35
  
• MAG CAP: 30
  
• MAX AMMO: 300 (600 PERK)
  
• FIRE RATE: 0.2
  
• AMMO COST: $780

• DAMAGE: 85
  
• MAG CAP: 10
  
• MAX AMMO: 50 (100 PERK)
  
• FIRE RATE: 1.1
  
• AMMO COST: $400

• DAMAGE: 21
  
• MAG CAP: 30
  
• MAX AMMO: 300 (600 PERK)
  
• FIRE RATE: 0.09
  
• AMMO COST: $410

• DAMAGE: 16
  
• MAG CAP: 15
  
• MAX AMMO: 120 (240 PERK)
  
• FIRE RATE: 0.2
  
• AMMO COST: $175

• DAMAGE: 30 x 8
  
• MAG CAP: 8
  
• MAX AMMO: 96 (192 PERK)
  
• FIRE RATE: 1.1
  
• AMMO COST: $650

• DAMAGE: 16
  
• MAG CAP: 50
  
• MAX AMMO: 500 (1000 PERK)
  
• FIRE RATE: 0.1
  
• AMMO COST: $500

• DAMAGE: 67
  
• MAG CAP: 6
  
• MAX AMMO: 48 (96 PERK)
  
• FIRE RATE: 0.6
  
• AMMO COST: $150

• DAMAGE: 29
  
• MAG CAP: 71
  
• MAX AMMO: 426 (852 PERK)
  
• FIRE RATE: 0.08
  
• AMMO COST: $400

• DAMAGE: 30
  
• MAG CAP: 100
  
• MAX AMMO: 500 (1000 PERK)
  
• FIRE RATE: 0.09
  
• AMMO COST: $2000

• DAMAGE: 28
  
• MAG CAP: 30
  
• MAX AMMO: 210 (420 PERK)
  
• FIRE RATE: 0.1
  
• AMMO COST: $850

• DAMAGE: 34 x 8
  
• MAG CAP: 2
  
• MAX AMMO: 40 (80 PERK)
  
• FIRE RATE: 0.5
  
• AMMO COST: $700

• DIFFICULTY: NORMAL
  
• SIZE: SMALL
  
• MODE: SURVIVAL (SOLO & COOP)
  
• LOCATION: UK, LONDON
  
• OPERATION: EARLY ACCESS

• DIFFICULTY: HARD
  
• SIZE: SMALL
  
• MODE: SURVIVAL (SOLO & COOP)
  
• LOCATION: IRELAND, GLENDALOUGH
  
• OPERATION: NUCLEAR HOLOCAUST

• DIFFICULTY: EASY
  
• SIZE: MEDIUM
  
• MODE: SURVIVAL (SOLO & COOP)
  
• LOCATION: UK, SOUTHEND-ON-SEA
  
• OPERATION: BLAST FROM THE PAST

• DIFFICULTY: HARD
  
• SIZE: LARGE
  
• MODE: SURVIVAL (SOLO & COOP)
  
• LOCATION: UK, UNKNOWN
  
• OPERATION: SAINTS AND SINNERS

COST: $650.
BUFF: HEALTH REGENERATION.
DEBUFF: N/A.
COOLDOWN: 4s. (TIMER STARTS WHEN YOU TAKE DAMAGE).
REMOVE ON DEATH: NO.

COST: $2250.
BUFF: ENDURANCE (SPRINT LONGER + SPRINT REGEN INCREASED).
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $3100.
BUFF: FASTER RELOAD.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $4550.
BUFF: INCREASE RATE OF FIRE.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $1450.
BUFF: SELF REVIVE.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: YES.

COST: $7500.
BUFF: INCREASE WEAPON DAMAGE.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $2250.
BUFF: WEAPON DRAW TIME REDUCED.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $4000.
BUFF: INCREASE AMMO CAPACITY.
DEBUFF: INCREASE AMMO COST.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.

COST: $2450.
BUFF: REDUCE WEAPON SPREAD.
DEBUFF: N/A.
COOLDOWN: N/A.
REMOVE ON DEATH: NO.