This can be done at the start of chapter 'A New Suit' / 'Ein Neuer Anzug', after being executed by the Nazis during an unskippable cutscene and having your head detached from your body. Afterwards, you get a new body and can choose between 3 upgrades: Ramshackles, Constrictor Harness, Battle Walker.
For this trophy you need to choose the Ramshackles. At the next enemy encounter there's a Supersoldat (heavily armored guy carrying a heavy weapon). Those guys sometimes rush towards you. When the Supersoldat is rushing towards you, run into him. The Ramshackles are activated automatically when you run. They let you tackle enemies while running. It's best that you make a manual save as soon as you see the Supersoldat. Getting the timing down is a bit tricky. You run back and forth and wait for the Supersoldat to come rushing at you. It will tackle him automatically and unlock the trophy.
