United Kingdom, April 15 -- A former 'Concord' developer has pleaded with fans not to "punish others for our mistakes" after Bungie's 'Marathon' received online criticism.

The upcoming PvP extraction-shooter was met with a mixed response by fans due to its lack of marketing and its art style when it was revealed by Bungie, though an ex-developer of 'Concord' - which suffered from similar issues and became one of the biggest failures in gaming history after it attracted a tiny player base on a reported $400 million budget - has insisted gamers should give 'Marathon' a chance.

On Reddit, they wrote: "Some of you probably smell blood in the water, and probably want to roast me for no longer lurking, and exposing myself.

"I hope you don't,...