The ending of a classic pure story playthrough, on Hard. I only have such materials and skills as the story missions gave me. No replays, no farming materials and reinforcing weapons, no Scout missions, no giving gifts, etc, and of course no Final Battle content.

With these limitations, Ancient Blade + Sneak Attack is the only way I can oneshot Titans. But the blade works very poorly on the Colossal, esp. the nape. In Final Battle the Showdown Equpment's gatling gun made things so much easier, but here I have to use artillery for that.

Sorry about the video quality.

00:00 skills and equipment
00:30 pick up Hange, start cleanup
04:00 Beast Titan
05:00 more cleanup
08:30 manual artillery vs Colossal Titan
12:25 finish cleanup, Armored Titan