hello m8 , i saw ur warhawk trophy guide , great one , i have some good and easy way to get Cowboy and World Victory alone without any other players .
for the world victroy , search for server with all options on all , u will find those blue servers ( dont know why they r blue , mostly higher rank lol ) mostly u will find capture Zone empty servers , get into one , start as any team and capture ur home area , then change to the other team and capture the rest of the areas , all in pre-game , mostly no one will join , and u can always start doing this when the server has 10 min left , capture all areas , and wait , then the trophy is urs. easy enough.
and for the Cowboy trophy , do the same , just search for TDM empty blue server , get into 1 and just wait , also in pre-game and worked , i tried to find DM server to get the lone wolf but couldnt , but i guess if u were lucky and find one ,it would work fine.
hope this helped and u can add it to the guide , thank u again for it.