Video games don't get much bigger than Call of Duty and Battlefield. The latest versions of both these monster franchises will go head to head when they are released later this year. Fans are getting a look at the new versions of each game at E3 in LA - and makers of both games have told Newsbeat they offer something genuinely new. Battlefield 1 is set in World War One and Call of Duty: Infinite Warfare takes place in the far future. "We knew that we wanted to do something that was a little bit different. We felt like we needed to challenge ourselves. At the same time there was this idea that had been floating around the office for many years - to create a game in World War One. So basically when those two things came together it was a perfect fit," explains Battlefield producer Alex Grondal.
After a three-year gap the series is back with a game that's being well received by many of those who've played it in LA. It feels vivid, fun and different to many other first-person shooters available. Alex Grondal says it's a fresh take on a sometimes predictable genre and what the makers were aiming for. "The more we started looking at it the more we realised that this was the game we needed to make. It enables us to do all these cool things that people haven't experienced before," he says.
Call of Duty: Infinite Warfare is not playable at E3 but fans are being shown an extended gameplay trailer. The new scenes have gone some way to convincing gamers that Infinite Warfare is going to deliver, after a lukewarm reception to earlier teases. Art Director Brian Horton told Newsbeat that the team at developer Infinity Ward knew they had ground to make up. "We want to provide the best experience for our fans. They're an extremely passionate group of people and they'll tell you what they think. But we believed in our vision and we knew that if we could just show them a bit more of what the actual experience was like that we'd start to turn around that sentiment and make it extremely positive," he says.
Judging by the trailer Newsbeat has seen at E3 - Infinite Warfare will be just as frantic, action packed and epic in scale as the other games in the franchise. But why set the game in space? "Space is very topical right now. You're seeing the privatisation of space and people making a new play that this is an important part of our future. You can also see that militarisation of space is something we're going to have to look into - it's going to happen at some point," Brian Horton explains. The team were keen to keep a "grounded" military feel to the game and grappled with how far to take the game into the realms of fantasy. "How far do you push into science fiction vs science fact? That's where we've had most of our 'interesting' conversations." Both titles are coming out later this year, so the clock is ticking to decide whether you'd rather fly a spitfire or a spaceship. Where would you be pitching your tent?