The posts included several screen captures allegedly taken by US forces shepherding an ISIS convoy, protecting them from Russian and Syrian forces.
The game in question is none other than AC-130 Gunship Simulator for Android and iOS.
"This is the irrefutable evidence that there is no struggle against terrorism as the whole global community believes", said the Ministry of Defence of the Russian Federation in an inflammatory Facebook post, which it also shared on Twitter.
Russia's Defense Ministry says it has launched an inquiry into pictures mistakenly attached to its statement.
Conflict Intelligence Team, a group of Russian online investigators who factcheck claims by the Russian military, said that the other four of the five photographs appear to be taken from 2016 footage released by Iraq's ministry of defence, depicting the Iraqi air force bombing Isis targets near Falluja.
Russian Federation recently cited stills from a video game as proof that the US was working with ISIS before quickly receiving backlash and ridicule from those who recognized the images. To make things worse for Russia's Ministry of Defense, they didn't completely crop out the "development footage" disclaimer. This is a work in progress.
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The images were later deleted from the ministry of defense's Twitter and Facebook accounts, and the ministry said several hours later that there had been a "mistake", and published a different set of pictures, calling them "irrefutable proof" of U.S. aid of IS.
Russian Federation alleges the USA is co-operating with so-called Islamic State by providing cover to fleeing IS militants.
It said the US-led coalition refused requests to cooperate and "eliminate fleeing Isis convoys".
The ministry is investigating its civil employee who attached a wrong photo to illustrate the ministry's statement on Abu Kamal.
"The US are actually covering the ISIS combat units to recover their combat capabilities, redeploy, and use them to promote the American interests in the Middle East", said the ministry.
Coalition spokesman Col. Ryan Dillon called those claims, "about as accurate as their air campaign".