When it comes to arcade videogames with words "Cross Fire", the Taito game is the first one that comes to mind since there is actual evidence of the game.
And same goes for Sierravision's computer game of Crossfire. And then there is a name that only shows up on game databases that Atari had marketed during 1970s.
I don't recall ever seeing the game myself, but it likely was out at places I didn't visit. The odd thing is why are there no flyers or no parts of the game that have turned up at places. I haven't seen anything and I am certain TAFA's Dan Hower (arcade flyer collector) would have found something by now if a flyer was ever printed in the past. If someone recalls seeing a past ebay auction or a cab photo of Atari Crossfire, I would be interested because I haven't seen any previous evidence of this Atari game.
Here is the cover of a service manual of Crossfire. It's not a fully intact manual and it appears some original pages of the paperwork has been lost over time while a few other pages are photocopies. It does have a pcb layout page and parts list pages and it does have 2 revisions of fully complete logic schematics (rev A and rev B) so it does have a decent chance to be emulated in DICE later.
There is one mention of a rom on a parts list page, but I can't seem to find it on the pcb layouts page nor in any of the schematics pages at this time, so hopefully that is a misprint. There isn't any game theory operation section in this manual, but it does show a pot adjuster to set amount of time for the gameplay. Other than that, I don't know what the gameplay will look like until it is emulated.