How do you get the last shot gun on Resident Evil 5?

Answer 1

i believe you have to complete the game then fully upgrade the scorpion sub machine gun, don't quote me on that though because I'm not 100% certain, once you fully upgrade the sub machince gun it will be available for purchace from the "buy" section.

Answer 2

easiest way is to get Wesker to follow chris up to the middle area and have Sheva shoot him in the back (easiest with a rocket launcher, from my own experience) , this is how I did it (by the middle bit i mean the raised platform part) but be careful he may decide to go after Sheva instead, also if you are playing as Chris be careful when you are in the middle area as if you get too close Wesker can do alot of damage.

almost forgot: there is an orange ball thing on Wesker which is what you shoot (:

Answer 3

fully upgrade the first shotgun

Answer 4

Fight Gando