The Warhawk servers have now gone down for maintenance until 4PM GMT. However they have now made the v1.3 update available for download. To download the new update just start up the game and it will ask you to download the new v1.3 update. Its as easy as that.
The new features that are in the new update are as follows:
*BIO-FIELD EMITTER (Creates a zone of healing for allies and a zone of damage for enemies)
*MECHANIC FIELD WRENCH (can be used to repair allied vehicles and turrets as well as damage enemy vehicles and turrets)
*Integration of Contest Winner Insignias and Paint Schemes
*.50cal turret targeting enhanced
*Point value update for CTF defend and flag-carrier kill
*CTF Sudden-Death trigger fix
*Disabled CTF Flag throw/drop functionality
*New VOIP Functionality
Once you've downloaded the update you'll be ready to play when the servers go back up at 4PM GMT.