Some of the models were borrowed from www.blendswap.com and then modified. Original model were in public domain.
I want to thank the following people who made their work available under Public Domain licence:

1. Joni Vvaris for low poly ak-47
2. Edimar Dos Reis Silva aka Mutte for his Lot Angel rigged character -- huge help.
3. Anonymous for hs Black Hawk helicopter model
4. Praydude for C-5B airplane model
5. Jeff2207 for a nice model of an elephant.