The gun game is the easiest game to complete! I have all weapons and acheivments. The one where you have to fire 900 bullets with the M1 garand is the most boring acheivment!
Speed challenges are getting easier, when you complete a shooting achievements. It's for example scorpion: Complete Novice and Gun Newbie achievement to have a more ammo for any gun (i think)
Figured out how to beat the M1A Rifle Skill Challenge!!! The problem with this challenge is the set up of the challenge is determined by your zoom. Mess with the zoom (hold down ctrl + scroll in/out), leave the challenge and re-enter it. The set up of the boxes will be different! Do this until the set up looks like the picture below. After that, you should be able to figure out what to do! The problem with this challenge is your zoom effects the set up of the boxes!!!!! EPIC PROGRAMMING FAIL!
i noticed when i was doing the kar98k speed challenge that you can reload your gun alot faster when using either the white or black hands instead of the skeleton hands