https://www.polygon.com/2017/11/13/16646374/battlefront-2-40-hours-unlock-luke-vader-prices

Star Wars Battlefront 2’s heavy costs for unlocking prime playable heroes are getting a big haircut — by 75 percent — following a weekend in which players deduced it would take 40 hours of multiplayer gameplay alone to get to Darth Vader or Luke Skywalker.

The news came in a blog post on the Battlefront site this afternoon. An update coming today reduces Vader and Skywalker’s unlock costs to 15,000 credits, the in-game currency that cannot be bought for real money (though it can be indirectly acquired; more on that in a second).