Walk and run, left thumbstick. Sprint, right shoulder button. Change weapons, D-Pad. Number of fingers needed, two. Jump, A. Sprint, Y. Reload/use, X. Melee, B or in on right thumbstick. Number of fingers used, two.
Crouch, cntrl. Sprint, x or shift. Walk, shift WASD. Lean, Q and E. Change weapons, 123456 or mouse scroll. Use item, 789 or F1, F2, F3, and F4. Jump, Spacebar. Throw grenade, F or G. Talk, C or T. Number of fingers, All.
Game being played, Half Life 2. Same game, same job, different efficiency. What takes half a keyboard to do on PC takes two fingers to do on a controller. Yes, you have more control, but you lack efficiency. Half the functions done take multiple keypresses at the same time to accomplish. That is inefficient, and that is why the controller is better for moving in 3d space. The mouse is still better for aiming, drastically so, but the keyboard is a poor solution.