Hey, I started speedrunning this game and Hitman 2, and I still haven't figured out the technique of bypassing the guards (pressing the forward key repeatedly?). Could someone please explain if it is in fact just spamming the forward key, and the approximated time between every key press. Tnx a bunch.

Hold down shift, or the designated run key, and tap the forward key.

Does it work if I toggle running? (Lets say with Caps or something?)

Yes