I've got another picture to show. This one is more concepty and groundworky. I got lazy
This one is showing off Angel Attack mode. I decided to use the Angel, Clockiel.
ANGEL ATTACK MECHANICS
Every Angel would have it's own starting point on the Tokyo 3 map, based on where their attack begins in the series.
Sachiel would start at sea, Ramiel somewhere off in the horizon of Tokyo 3, etc. Most would probably start off the coast of Tokyo 3 though, thinking about it.
Most Angels would also have at least 2 weapons: the iconic angel beam, and a second attack special to the Angel. For Clockiel, that is the black missle like projectiles.
Enemy attacks would also move through a heat system. The more damage you cause the more resistance is given out. At first it may start out with a squad of VTOLs and a battalion of tanks. (These wouldnt really be able to do damage. They are there for giving off the effect that you are unstoppable.) These JSSDF units would continue to multiply, eventually leaving them no choice but to drop N2 Bombs. These would be able to hurt you. I'm thinking there would be a way to deflect them with the AT Field. Maybe a quicktime event or a bar you have to fill by creating mass amounts of damage. Something like that.
The graphic around the VTOL indicate the target. The red outline around the VTOL indicates that you have a lock-on, and the homing projectile will hit it.
And finally as the last line of defense, an Evangelion unit would be sortied against you. This Eva unit would also have a chance to go berserk given the right circumstances.
Now of course your main goal would be uniting with Lilith and starting Third Impact. There would be a spot in Tokyo 3 you must reach that would allow you to break through into the geofront. How long this takes is based on the Angel's own strength. Sachiel could take a while, while Zuerel could break right through. Resistance hits maximum here. Once an Eva unit is destroyed another is launched, and so on. From here fight your way to Nerv HQ, destroy it, descend down Terminal Dogma, and complete your objective, giving you a nice chaotic cinematic of the impact destroying everything.