Here's a closer look at the Titans and the difference between Tier 1 and Tier 2 (Tier 1 is on your left and Tier 2 is on your right). The Atlas Titan is the most balanced of the bunch.

Titanfall continues to roll out new Titan class trailers. Check out the latest one for the Atlas! Ozzie Mejia December 23, 2013 2:00 PM 14 ...

Threezero explains that this is just a prototype, but it seems like “Titanfall: Atlas” comes in two pieces: a 20.5-inches tall Atlas Titan and a 6-inches tall pilot.