Microsoft has set up a novel arrangement with American Express that will have the credit card company rewarding players with a $25 credit on their statements when they complete Halo 4's single-player campaign.

Other developers like Zynga have had credit card partnerships that rewarded players with special retailer offers and virtual rewards before, but this is the first time a triple-A console title has offered monetary incentives to everyone who completes its story mode (provided they have an American Express card).

Consumers in the U.S. and UK who pick up Halo 4 for Xbox 360, and connect their American Express card to their Xbox Live account will automatically receive coupons to places like AMC Theaters, as well as a $10 (or £10 in the UK) credit statement on their card.

American Express has tied its rewards to Halo 4's achievements, too, so players who complete a certain in-game objective will receive additional coupons, and those who finish the game's single-player campaign will receive a $25 (or £25 in the UK) statement credit.

While this partnership is a first for American Express, the company suggests it's ready to implement similar deals with other publishers through its American Express Card sync platform and Smart Offer APIs.