A developer for Respawn has stated on NeoGAF that itanfall has been really tough for Respawn to market due to the lack of a single player mode.
“It’s actually been really tough trying to accurately market Titanfall,” Drew McCoy wrote. “If you look at what we’ve done, its a lot different than what most FPS games do. Without a bunch of highly scripted SP moments to recam from different angles, the usual ‘movie like’ trailer is just about right out.”
Because they don’t have cinematic single player experiences to make trailers, they’ve showed a few unedited gameplay clips, and they plan on showing more clips before launch.
“Instead, we’ve decided to show unedited gameplay segments that last 3-5 minutes (so far – more footage coming, of course!) to show the ‘flow’ of the game. Starting as a Pilot, taking on AI and other player Pilots, wall running around a Titan, earning your Titan, climbing in, battling other Titans while stomping on humans, ejecting, etc. There’s a huge amount of gameplay mechanics available at any one time, and encompassing them in a few minutes is actually quite hard to do.
“Its also why we took an extremely early pre-alpha build of the game to events like Gamescom, PAX, etc. to let normal dudes hands-on time with the game. There’s no amount of polished marketing that can replace playing the actual game.”