According to the artist in a reply, the "cheating gun" line is a nod to something Keanu Reeves said while doing target practice with the TTI PIT VIPER (the sister/predecessor to the SAND VIPER) regarding its ease of shooting
I was about to say the writing in the top left corner doesn't sound like proper german. Turns out its danish. Though, it is missing a 't' at the end. Tinsoldat.
And that's why they force you to quit smoking in the military during an operation. Don't want to compromise your position to the enemy whether by a dim light or smoke trails.
They actually did it. They referenced the Original commercial which was the birthplace of the ran ran ru meme and the start of more than a decade worth of derivative works.
This is just stitched together screenshots from the show, I don't think the artist meant to pass this off as his own art (because he made other posts where he said they were stitches).