User blog comment:FortressOfNight/https://www.youtube.com/watch?v=sGbxmsDFVnE/@comment-5625448-20151022222912/@comment-4964341-20151023232338

Agreed, Fort. Honestly it's a bit realistic. Look at US soldiers from '45 to the '80s, and it's all pretty similar yet rather different.

Or look at the M1 Abrams - it's the SAME TANK that's been used for literally 30+ years, with lots of little upgrades tacked on over time. Maybe the TIEs are the same way.