to Azuriel855 if you find the game title in your Internet Options and/or Temp Internet Files folder (it should be in the top area if you sort by the most space used) and delete it the game will be forced to reload again
In Survival Mode the most expensive Mini-Gun at 9000 Exp., the GAU-8, is the easiest way to get over 200 Kills and the Badge because the GAU-8 has a 999 Capacity which is super helpful when the zombies get overwhelming. (like this comment so more people can see it)