For my taste your cities are too far spread out here. Gold wasn't worth it, you can't even connect it to your cap early on, and it costs incredible tons of workerturns sooo far away, can't share tiles and everything ... #1 city would've probably been right on the sugar, minimum workerturns, instant connection, good short-, mid- and longterm potential, alot of shared tiles and some forest. #2 Cow/Wheat, and #3 somewhere around the copper, but i wouldn't have settled the gold. With 4 cities like that a catapult war is absoluty possible, those are decent/good cities and have everything you need: food, production, forest, cottage potential ... Yip, i'd guess that this start should be winnable. I'd play it myself, but Marathon is a huge pita, so i'd rather not shadow this one 
Nonetheless, this looks like a rather tough start, and the expansion speed is high even for deity standards (although i'm not familiar with the expansion speed of deity AI on Marathon, i'd guess that it's roughly the same..?), and with AGG and PRO leaders around war would be hard in any case, but at least no one declared on you early on nor where you boxed in to less than 4 cities, which is the minimum to have a chance @ war.. Maybe you'd have even get 5 cities if you hadn't taken the Goldcity and realized that the AI is spreading like the plague, after all Yekatarinburg is a more than decent city, even for a third city it's absolutely okay as long as it blocks (which it would have done in this case). And with 5 cities, you should be able to kick someones ass with Catas in almost any case.

Nonetheless, this looks like a rather tough start, and the expansion speed is high even for deity standards (although i'm not familiar with the expansion speed of deity AI on Marathon, i'd guess that it's roughly the same..?), and with AGG and PRO leaders around war would be hard in any case, but at least no one declared on you early on nor where you boxed in to less than 4 cities, which is the minimum to have a chance @ war.. Maybe you'd have even get 5 cities if you hadn't taken the Goldcity and realized that the AI is spreading like the plague, after all Yekatarinburg is a more than decent city, even for a third city it's absolutely okay as long as it blocks (which it would have done in this case). And with 5 cities, you should be able to kick someones ass with Catas in almost any case.
