By making sure that Saudi Arabia is portrayed as an ally in the game’s canon rather than generic MENA terrorists.

It sounds silly at first but the US military has been doing something similar for ages with Hollywood, at least since WWII. The difference is the armed forces use access to military equipment for filming as the carrot rather than financing the productions directly.

The US Army has literally put out a video game as a recruiting tool: America's Army.

From a gamers perspective, anything trying to actually convey a message would be a win against grey-goop slop franchise titles that play it so safe they can barely convey more than “you hero. Kill bad guy”.

That the message is going to be “Saudi Arabia and Pakistan are tier-1 allies / partners / powers” depends on your perspective. Lots of gamers outside the US these days!

I mean, presumably the same way the US military has been using AAA shooters (and Hollywood) to shape global perspective the last few decades. I can't say I'd be against a few big titles where the brown guys get to have the starring roles...

That said, given Saudi Arabia's whole vibe, one can't expect that angle to go all that well for anyone else's representation (Women, Israelis, LBGTQ+ folk...)