Infinity Ward and Beenox have just released the day-one PC update for Call of Duty: Modern Warfare 2 which weighs around 55GB in size.

This update is only available to those that have pre-ordered the game. In other words, the patch will be automatically applied in the game’s launch version.

According to reports, this PC update can be as high as 60GB in some cases. In our case, and according to Battlenet, the patch is 55GB in size.

Although Infinity Ward has not revealed its release notes, it did share some key changes, tweaks and fixes it has made for the game’s Multiplayer Mode. As such, I’ve included them below.

Call of Duty: Modern Warfare 2 releases tomorrow on PC. The game supports NVIDIA DLSS 2, Intel XeSS and AMD FSR 1.0. Be also sure to also read our PC Performance Analysis!

Call of Duty: Modern Warfare 2 Multiplayer Day-One Update Key Features

Enemy Visibility

• We have added diamond icons above the heads of enemies. This should make it easier for players to clearly identify opponents in the game.
• Additionally, we’ve continued to tweak lighting and contrast for improved enemy visibility.

Audio

• We’ve shortened the overall range of footstep audio which will allow enemy players to get closer to targets before they are able to detect footsteps. We have also continued to tweak teammate footstep audio, which will now be quieter following feedback from the Beta.
• The in-world activation sound effect volume range for the Dead Silence field upgrade has been drastically decreased.

Third Person

• Following feedback from Beta, aiming down sights will now stay in third person POV for low-zoom optics. Only high-zoom optics (beginning with the ACOG and higher) and special optics such as Hybrids and Thermals will revert to first person POV. We believe this will enhance the third person experience while keeping the gameplay balanced. The feedback on this mode has been very positive, and we will continue to explore its use as a modifier.

Weapons

• We have continued to tweak weapons across the game following both feedback from Beta players and game data. Players can expect more specifics on weapon tuning as we continue to support post-launch.

UI

• We have been working hard on numerous updates to our UI that make accessing and customizing your loadout more seamless. We’ve made improvements to navigation of menus and will continue to optimize our UX.

Movement

• Slide, ledge hang, and dive have been further refined. We’ve also addressed some movement exploits following Beta.

Matchmaking

• We have implemented some changes that aim to reduce lobby disbandment between matches. We look forward to testing this at a large scale and getting feedback.