https://wccftech.com/forza-horizon-4-halo-event-confirmed/

Forza Horizon 4’s Halo-themed Showcase Event is the real deal. Evidence of the crossover first came to light last week, when clever fans discovered a Halo-themed image hiding amongst early-release Forza Horizon 4 files, but, of course, without confirmation from Microsoft and Playground Games, we had to file it under “rumor.” Well, the Forza Horizon 4 Halo crossover has been made official, with several outlets laying eyes on the event behind closed doors at Gamescom 2018.

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