I’m going to get forza horizon 2 for xbox one for christmas so i need a xbox one hard drive for this or will it play with just the game?
I imagine that if you have more than 10% hard drive space left, it should be alright. You won’t need an external hard drive.
It requires an install which is about 30+ GB - but the XB1 comes with a HDD, and if you have filled yours - it should work with an appropriate external HDD.
ust a tip - ignore the "ready to play message when installing the game or updates - let them download and install completely before using the associated game.