I like to call this one the Way of the Turret, or How I Worked an Offense, Out of Defense
Game: Command and Conquer 3: Tiberium Wars
Faction: Nod
Mission: Kane's Tower
Difficulty: Hard
I actually had quite a lot of fun with this one. Playing as Nod in this mission, you find yourself under considerable pressure on all sides, particularly pressure to act quickly in order to salvage the mission objectives.
GDI was launching a massive assault against the phase generators I was supposed to be protecting, and unfortunately keeping enough pressure on my base that I couldn't spare the forces needed to fend them off. I had just enough base defenses and time to build enough units to protect my own base, but every time I tried to move those units to the generators, they ran into GDI and got overwhelmed. And I couldn't demolish GDI's forces nearly fast enough to keep up with their production. In essence, they had me pinned right where they wanted me; so busy fighting them off at home, I couldn't do so abroad.
And then a stroke of sheer, desperate creativity hit me. I immediately started throwing all of my money into Obelisks of Light, eventually producing about 17 of them and instead of seating them at the borders of my base, I dispersed them all within it, next to my structures and beside turret guns and SAM's. (Obelisks are the Nod's best base defense against vehicles, and in multiple numbers can hold a position for quite a while)
I then made the move that would either save my campaign or murder it: I killed ALL power to my base. Everything got shut down, Obelisks, turrets, production facilities, airport, everything. The only thing I retained power for was my radar, so I could guide my small force of Avatars and Vertigo bombers.
I began moving that force towards GDI's southeast base, only this time using a route that went AROUND the one normally taken by GDI to my base. And sure enough, within only a few moments the southeast base had mobilized all of its Mammoth tanks, Pitbulls, and infantry, and was moving hard and fast towards my buildings, completely ignoring my forces marching toward them.
When I reached their base I was already squirming quite a bit. Those Mammoths were making short work of my buildings, and I figured I had maybe 30 seconds before they trashed everything beyond repair. I used my Vertigos to take out their Sonic Turrets, and just like I'd hoped, they had no vehicles left to defend the base. My Avatars quickly wiped out their 2 War Factories, and as soon as I set them to attack the Construction Yard, I immediately started restoring power to the Obelisks, of which there were only 10 now, but which also surrounded GDI's attack force.
The Obelisks of Light quickly wiped the floor with GDI, taking out their Mammoth tanks and Pitbulls before they could retreat or destroy more than two of them. Meanwhile, my Avatars had finished with the Construction Yard, and along with my Vertigo bombers, having been set to the "Aggressive" stance, were finishing up with the rest of GDI's southeast base.
I lost a total of 7 Obelisks of Light, 2 SAM turrets, 4 Laser Turrets, a Barracks, an Air Tower, two Generators, and some Avatars and Vertigos. GDI lost its entire southeastern offensive capability. After that, I marched my Avatars, Vertigos, and Venoms I was back to producing to the phase generators, and easily pushed GDI back. From there, it was just a matter of rebuilding, rearming, and sweeping GDI from the battlefield.
I felt really awesome after this one for a long time.