WiFi missions:
To unlock all WiFi missions in all three modes, achieve an “S” rank in all Single-Player mode missions.
Concept art:
Unlock the following concept art at the “Extras” menu by performing the corresponding tasks:
CONCEPT ART – HOW TO UNLOCK
Anglo Isles – Beat the Western Frontier Flashback campaign with all “S” ranks.
Iron Legion – Beat the Anglo Isles campaign with all “S” ranks.
Solar Empire – Beat the Solar Empire campaign.
Tundran Territories – Beat the Iron Legion Flashback campaign with all “S” ranks.
Western Frontier – Beat the Solar Empire campaign with all “S” ranks.
Xylvania – Beat the Tundran Territories campaign with all “S” ranks.
Unit Dossier:
Unlock the Unit Dossier for the following armies by performing the corresponding tasks:
UNIT DOSSIER – HOW TO UNLOCK
Anglo Isles – Beat the Western Frontier Flashback campaign with all “A” ranks.
Iron Legion – Beat the Anglo Isles campaign with all “A” ranks.
Tundran Territories: Iron Legion – Beat the Iron Legion Flashback campaign with all “A” ranks.
Western Frontier – Beat the Solar Empire campaign with all “A” ranks.
Xylvania – Beat the Tundran Territories campaign with all “A” ranks.
Title screen tanks:
You can shoot the tanks on the title screen by pressing B.