Thank @Hako
READ THE FOLLOWING CAREFULLY BEFORE YOU BEGIN
1- For this game to work, it is MANDATORY to install the 13 PKG files (All on the Page) that I have given on the page.
2- First you will install the v1.00 main game, then the v1.08 backport update and finally 11 DLCs. All are mandatory.
3- I installed it in the following order.
Call.of.Duty.Modern.Warfare.2.v1.00-CUSA34029
Call.of.Duty.Modern.Warfare.2.v1.08bp-CUSA34029
Call.of.Duty.Modern.Warfare.2.Campaign.Pack1.DLC-CUSA34029
Call.of.Duty.Modern.Warfare.2.Campaign.Pack2.DLC-CUSA34029
Call.of.Duty.Modern.Warfare.2.Co-op.Pack.DLC-CUSA34029
Call.of.Duty.Modern.Warfare.2.Multiplayer.Pack.DLC-CUSA34029
Call.of.Duty.Modern.Warfare.2.Warzone.2.DLC-CUSA34029
Call.of.Duty.Modern.Warfare.2.Campaign.License.DLC-CUSA34029 (6 ADET)
4- OYUNUN ÇALIŞMASI İÇİN İNTERNET BAĞLANTISI GEREKİR. BUNUN İÇİN OTOMATİK İNDİRMELERİN KAPALI OLDUĞUNDAN EMİN OLUN.
Eğer bunun ne anlama geldiğini bilmiyorsanız öğrenin, bir bilene danışın yada BU OYUNDAN UZAK DURUN.
5- OTOMATİK İNDİRMELERİN KAPALI OLDUĞUNDAN EMİNSENİZ İnternet bağlantısını etkinleştirin ve oyunu çalıştırın.
6- Aşağıdaki ekranı görene kadar devam edin. Resimdeki “GO OFFLINE” yazan bölümü seçip X ile devam edin.Bu seçeneği (GO OFFLINE) gördüğünüz her yerde
“GO OFFLINE” seçeceksiniz

7- Select “I UNDERSTAD” when you see the screen below.
8- When you see the “NEW GAME” screen below, press the “OPTIONS” button on your Ps4 controller.
9- Go to Settings and click “GRAPHICS”.
10- Set “DN-DEMAND TEXTURE STREAMING” to “OFF”. If this setting is not “OFF”, the game freezes.
11- Play… BUT DON’T FORGET TO TURN OFF YOUR INTERNET CONNECTION BEFORE STARTING THE GAME. BECAUSE IT IS NO LONGER NECESSARY.
Take the game down with the PS button and enter the “NETWORK” section from the settings and TURN OFF THE INTERNET CONNECTION. DON’T FORGET THIS.
BECAUSE WHEN YOU WANT TO TURN OFF THE GAME AND CONTINUE LATER, YOU NEED AN INTERNET CONNECTION AGAIN AT STARTING. THEN
EVERY TIME YOU GO AGAIN WITH AN INTERNET CONNECTION, REMEMBER TO TURN OFF YOUR INTERNET CONNECTION BEFORE PLAYING.
12- Good games…
2. METHOD – ENTERING THE GAME WITHOUT INTERNET: (You can get angry and break your TV in this method):D
Start the game, where it asks you for an internet connection (Connection Failed), press the X key 15-20 times and check, you should see the go offline option. If you do not see it, keep pressing the X key in the same way and check the go ofline option again, otherwise continue with the same process. Finally, if you didn’t break the monitor or ps4, you will see the go ofline option because it gives up and plays you. 😀 Choose go offline, you are inside now. Don’t forget to turn off the graphic setting I explained above from the settings…
good games…