Started a game atop Mt. Planet - on a small map, with every other faction excluding the Gaians and Morganites (as "Transcend", with "Aggressive Rivalry" activated). I was the Believers, and with a single scout patrol I was able to eliminate the Hive. I proceeded to build two recon rovers, and with them conquered all University and Peacekeeper territory. Alas, I needed a pact with Col. Santiago to move my units through; so I betrayed her, and walked right into Sparta Command.
The mountain provided good energy with solar collectors - enough for me to buy the Command Nexus and Maritime Ctrl. Center early on. I "sank" all Gaian isles of the deep with missile cruisers, and landed four elite "X" (nerve gas) missile marines right into Gaia's Landing (defended by synthmetal garrisons). Fortunately for me, the Gaians had already killed Morgan, so I won at the end of the 23rd century.
That +25% bonus really "kills".