You call those scenes suspenseful. If the three bounty hunters drew their guns fast and shot each other in seconds, the audience adrenaline rush would be gone so fast. Instead do something a lil different. Make it a little more suspenseful, wait a bit, show close-ups of their eyes, the sweat on their faces, their hands going to their guns and then slowly pulling away from their weapons, etc. What are the three men thinking before one of them falls to their death? Add a great score and that's when you got the audience. It's a great little scene. In any case R.I.P. Eli Wallach. A great actor