Mikasa Ackerman is a Scout Regiment Solider, one of the best alive currently, besides Levi Ackerman. Mikasa had honed herself to be a talented fighter at a very young age, often throwing boys bigger than her with ease, gaining her reputation. Combined with her prodigious skill in omni-directional mobility gear, she can easily take down Titans with speed and efficiency. This has led to her being mentioned as a military genius many times and "her prowess is equal to that of a hundred soldiers"