Looks like in order to combat demons from hell, the Doom developers thought to airdrop messenger bags filled with bricks of Swiss fondue onto the battlefield:
I find this rather unfortunate, since every Swiss person knows that freshly made fondue with your own selection of cheeses, with or without Kirsch and matched to the right sort of white wine, is the best. Ready-made supermarket stuff can never quite compete. It’s almost as bad as ready-made rösti!
What a disappointment, Bethesda.
Why that Swiss flag? 