The new Coliseum mode is where players can face up against each other in a 1 vs 1 match but to play that, you will need a Coliseum ticket and those with in-game experience points.
If you do not want to play and collect in games experience, there might be another way for you to do it. It has just been announced that players will stand a chance to get a Coliseum ticket code if there but a Mountain Dew drink or Doritos chips.
The tickets will only be available on those specially marked chips and drinks. Those get the ticket that way will also receive a double XP nonis and a chance to get a Titan personalization item like camo, Ronin titan or warpaint.
The new Titanfall 2 will be released on the 28th of October 2016 on PC, Xbox One, and PS4. Respawn has also released the PC requirement for Titanfall 2.