Tom Clancy's End War- Upgrading units

[fligtOFstairs]

I just started the game today would it be worth playing online since i am so low ranked?

[weeguymo]

hi.....how do you upgrade......i got this game for ps3 and i have done the first couple of mission's and pick't my team and still don't know.....people say i you go on world map and press square......done this and nothing.......any help

[Blackraven0900]

keep up good work