Metal Gear Solid V: The Phantom Pain will have user-generated missions and an online component, series creator Hideo Kojima has said at E3.

Speaking with CVG about the game’s open-world, the first in a Metal Gear Solid title, Kojima said he wanted “to make sure that we were doing the most difficult and challenging thing,” as well as make use of outside devices like tablets and smartphones.

“Using tablets and smart phones you can also enjoy Metal Gear Solid V and create user-generated missions within the world,” Kojima said. “That’s another reason we had to go open-world—if it was linear we wouldn’t be able to do that.”

According to Kojima, the game’s online component, Metal Gear Online, is in development at Kojima Productions Los Angeles in co-operation with the Tokyo team.

“We’re working closely to create a vast multiplayer for all the fans,” he said.

Metal Gear Solid V: The Phantom Pain consists of two parts: Metal Gear Solid: Ground Zeroes and The Phantom Pain. Kojima said he couldn’t comment on whether they’d be released separately, as it still hasn’t been decided within the company.