https://charlieintel.com/modern-warfare-2-season-1-update-patch-notes/205008/
WEAPON BALANCINGย 

ยป Assault Rifles ยซ

๋Œ๊ฒฉ์†Œ์ด

  • Increase to long distance flinch on all Assault Rifles
  • ๋ชจ๋“  ๋Œ์†Œ ์žฅ๊ฑฐ๋ฆฌ ์›€์ฐ”๊ฑฐ๋ฆผ ์ฆ๊ฐ€

Kastov 545ย 

  • ADS speed increase
  • ์ •์กฐ์ค€์†๋„ ์ฆ๊ฐ€
  • Improved ironsight ADS sight picture
  • ์•„์ด์–ธ์‚ฌ์ดํŠธ ์ •์กฐ์ค€ ์‹œ์•ผ ๊ฐœ์„ 

Kastov-74u

  • ADS speed decrease
  • ์ •์กฐ์ค€์†๋„ ๊ฐ์†Œ
  • Hip spread increase
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ์ฆ๊ฐ€

M4ย 

  • Hip spread reduction
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ๊ฐ์†Œ

M16ย 

  • Rate of fire increase
  • ์—ฐ์‚ฌ๋ ฅ ์ฆ๊ฐ€
  • Hip spread reduction
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ๊ฐ์†Œ
  • Recoil recenter speed increase
  • ๋ฐ˜๋™ ๋ณต์› ์†๋„ ํ–ฅ์ƒ
  • Shot grouping improvement
  • ํƒ„ ๋ชจ์ž„ ๊ฐœ์„ 
  • Increase ADS movement speed
  • ์ •์กฐ์ค€ ์ด๋™์†๋„ ์ฆ๊ฐ€
  • Increase strafing movement speed
  • ์ขŒ์šฐ ์™€๋ฆฌ๊ฐ€๋ฆฌ ๋ฌด๋น™ ์†๋„ ์ฆ๊ฐ€
  • Semi auto recoil reduction
  • ๋ฐ˜์ž๋™ ๋ฐ˜๋™ ๊ฐ์†Œ
  • Semi auto damage reduction
  • ๋ฐ˜์ž๋™ ๊ณต๊ฒฉ๋ ฅ ๊ฐ์†Œ

STB 556

  • Close range damage reduction
  • ๊ทผ๊ฑฐ๋ฆฌ ๊ณต๊ฒฉ๋ ฅ ๊ฐ์†Œ
  • Reduced sprint to fire speed
  • ๋‹ฌ๋ฆฌ๊ธฐ์ค‘ ์‚ฌ๊ฒฉ์†๋„ ๊ฐ์†Œ

ยป Battle Rifles ยซ

FTac Reconย 

  • ADS speed improvement
  • ์ •์กฐ์ค€์†๋„ ์ฆ๊ฐ€
  • 5 round magazine โ€“ speed and handling improvement
  • 5๋ฐœ๋“ค์ด ํƒ„์ฐฝ - ์ด๋™์†๋„๋ž‘ ํ•ธ๋“ค๋ง ํ–ฅ์ƒ
  • Increased flinch caused by bullets
  • ์ด์•Œ ์›€์ฐ” ์ฆ๊ฐ€
  • Hip spread decrease
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ๊ฐ์†Œ

SO-14

  • Increased hip fire when full auto
  • ์ž๋™์‚ฌ๊ฒฉ์‹œ ์ง€ํ–ฅ์‚ฌ๊ฒฉ? ์ฆ๊ฐ€ (ํž™ํŒŒ์ด์–ด๊ฐ€ ๊ทธ๋ƒฅ ์ง€ํ–ฅ์‚ฌ๊ฒฉ ์•„๋‹ˆ๋ƒ ๋ญ ์ฐจ์ด ์•„๋Š”์‚ฌ๋žŒ ์„ค๋ช…์ข€)

ยป Handguns ยซ

  • Increase to close range flinch on all Handguns
  • ๋ชจ๋“  ๊ถŒ์ด ๊ทผ๊ฑฐ๋ฆฌ ์›€์ฐ” ์ฆ๊ฐ€

ยป Light Machine Guns ยซ

  • Increase to long distance flinch on all Light Machine Guns
  • ๋ชจ๋“  ๊ฒฝ๊ธฐ๊ด€์ด ์žฅ๊ฑฐ๋ฆฌ ์›€์ฐ” ์ฆ๊ฐ€

ยป Marksman Rifles ยซ

Lockwood 300

  • Damage range reduction
  • ๋ฐ๋ฏธ์ง€ ๊ฑฐ๋ฆฌ ๊ฐ์†Œ

SA-B 50

  • Minor increase to flinch when hit
  • ํ”ผ๊ฒฉ์‹œ ์›€์ฐ” ์•ฝ๊ฐ„ ์ฆ๊ฐ€

SP-R 208

  • Large increase to flinch when hit
  • ํ”ผ๊ฒฉ์‹œ ์›€์ฐ” ๋งŽ์ด ์ฆ๊ฐ€

ยป Shotguns ยซ

  • Increase to close range flinch on all Shotguns
  • ๋ชจ๋“  ์ƒท๊ฑด ๊ทผ๊ฑฐ๋ฆฌ ์›€์ฐ” ํ–ฅ์ƒ

Bryson 800

  • Close range damage increase
  • ๊ทผ๊ฑฐ๋ฆฌ ๋Ž€์ง€ ํ–ฅ์ƒ
  • Hip spread increase
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ์ฆ๊ฐ€

ยป Submachine Guns ยซ

  • Increase to long distance flinch on all Submachine Guns
  • ๋ชจ๋“  ๊ธฐ๊ด€๋‹จ์ด ์žฅ๊ฑฐ๋ฆฌ ์›€์ฐ” ์ฆ๊ฐ€

FFS Hurricaneย 

  • ADS move speed increase
  • ์ •์กฐ์ค€ ์ด๋™์†๋„ ์ฆ๊ฐ€
  • Increased headshot damage
  • ํ—ค๋“œ์ƒท ๋Ž€์ง€ ์ฆ๊ฐ€
  • Increased far damage range
  • ์žฅ๊ฑฐ๋ฆฌ ํ”ผํ•ด ๊ฑฐ๋ฆฌ ์ฆ๊ฐ€

Minibakย 

  • Movement speed decrease
  • ์ด๋™์†๋„ ๊ฐ์†Œ
  • Damage range decrease
  • ํ”ผํ•ด ๊ฑฐ๋ฆฌ ๊ฐ์†Œ
  • ADS speed decrease
  • ์ •์กฐ์ค€์†๋„ ๊ฐ์†Œ
  • Hip spread increase
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ์ฆ๊ฐ€

PDSW 528

  • Movement speed increase
  • ์ด๋™์†๋„ ์ฆ๊ฐ€
  • Damage range increase
  • ๋ฐ๋ฏธ์ง€ ๊ฑฐ๋ฆฌ ์ฆ๊ฐ€
  • ADS speed increase
  • ์ •์กฐ์ค€์†๋„ ์ฆ๊ฐ€
  • Hip spread decrease
  • ์ง€ํ–ฅ์‚ฌ๊ฒฉ ํƒ„ํผ์ง ๊ฐ์†Œ
  • Adding Laser and Flashlight Attachments
  • ๋ ˆ์ด์ €๋ž‘ ์†์ „๋“ฑ ๋ถ€์ฐฉ๋ฌผ ์ถ”๊ฐ€
    • 1mW Artemis Laser
    • 1mW Quick Fire Laser
    • Accu-Shot 5mW Laser
    • VLK LZR 7mW
    • 7mW Canted Laser
    • Schlager ULO-66 Laser

VEL 46ย 

  • Damage range increase
  • ๋Ž€์ง€ ๊ฑฐ๋ฆฌ ์ฆ๊ฐ€

ยป Sniper Rifles ยซ

Signal .50

  • Fixed attributes on the Signal .50 barrels:
  • ๋ฐฐ๋Ÿด ์˜ต์…˜ ์ˆ˜์ •
    • 21.5โ€ณ Fluted Fifty
    • 23.5โ€ณ SA Fifty-H7