On top of that you've got upgrade cores that can be spent to purchase one of three core upgrades for characters, such as giving Hollywood the ability to leave behind bombs when he dashes or vastly increasing the power of Braddock's orbital laser bombardment Mayhem ability. (wolfsgamingblog.com)
The cheapest facility is $ 1.25 million, though they can all be upgraded to include features like orbital lasers (~ $ 900k.) (kotaku.com)