Very well done! Things to improve: o the player's movement (especially jumping, as you know, camera bobbing) o add a little gravity script to the boxes => players can build bridges/towers and so on... o hitzones o places where you have to buy your weapons (like in CoD5 - Nazi Zombies) so the player has to move
And please spend 90%+ of your time on the gameplay and <10% on the graphics!
"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual