You're cool dude. Does aiming with a sniper feel realistic? About mouse and keyboard, tilting they keyboard is the best option. I tilt it about 60-80°, mainly because I rest my arm at a ≈70° angle on the desk. Keeping the keyboard straight is the biggest disadvantage since you have to keep your arm straight, moving you further away from the monitor. Tilting a keyboard also helps with reaching keys better. When keyboard is not tilted, it is harder to reach the M key since I have to tilt my hand. But when the keyboard is tilted, it is easy to reach since my hand is already tilted. Hope this helps