I don’t play Battlefront, but why exactly does this remind your friend of that game? is it because the game has an overlapping plot? that this is a movie with an epic battle?
Battlefront is literally just large scale Star Wars battles, with the goal being to let the player immerse themselves in the Battle of Hoth, the Battle of Endor, etc.
So the more accurate thing to say would be that the battle at the end of Rogue One reminds them of the battles in ESB and ROTJ.