A normal day that you decided to get for your life, once you walk out, a gush of wind suddenly flows by very quickly, always happen, one step out, titans appear. What kind of karma is this??? or even curse? While everyone panicked, running everywhere, screaming and all, you quickly leaded yourself to the safe zone just to be told that it was full and had to head somewhere else with a safe zone, nearby or very far.

You grunted in frustration and quickly headed to where somewhere would have a safe zone just to be also full, hide, find and survive. Traumatising place, while going around, the Survey Corps finally appeared, they had their ODM gears, but for some, they didn't really have to use the grapples but kept the ODM gear on for their blades, others had actual wings, big or small but enough for them to control and fly around. As an example:

Erwin Smith, the commander of the Survey Corps has wings of an Osprey, large and heavy yet carried easily for them and him. Another, Hanji Zoe, Squad Captain of their group has wings of a Swallow tailed kite, also large, most of everyone in the scouts who has wings are a large or a medium. Next, Levi Ackerman, also a Squad Captain of his own group, a mix of a Chikadee's and Swallow's wings. No one knew about birds but rather in books, animals and other commons were never seen and now not known, only in books, as an outsider, you knew about this stuff yet kept that information to yourself in case someone figures out you're not from here.

Now, focus on whatever you can do, and try to head for another safe zone or hide to survive, hope for yourself it's also not full.