Hi guys, after check a lot of post, the only solution that i found to launch the game was to disable the savedata on the cloud, see image below.

hab das spiel heute erneut installiert für überlebensmodus, aber nur der multiplayer lässt sich starten, die mw3 normale exe öffnet sich nicht, zeigt nur kurz "ausführungsdatei wird aktualisiert"

Use this thread to find a Spec Ops / Survival partner. For example if you are able to help other people out or would like to find a partner to play with Spec Ops then simply make a post here and wait for somebody to add you to their friends list. Or you can add other people who have posted here. Please also state what DLCs you own, if any. Thanks everyone....

i play at veteran difficulty so just be prepared for a fight

Des que je me connecte, le jeu retourne à la flèche verte d'ouverture. Avez-vous une soluce ?