Heres another topper.
I was forced to develop star killers and had produced only 2 by the time the Klingon AI that I am using used WARP POINT openers to open two stratigic worm holes into key systems. I discovered them only 3 turns before they invaded. I was lucky that I was able to move a fleet into each system to challenge them when they emerged. I also had the oppertunity to send a cloaked Warp Point Closer and two Star Killers through before the Joint Cardassian / Klingon / Borg Fleet came thru. (The Klingons had conqured the Borg long ago and had a military allinace with the Cardassians.)
I used the Warp Closer to shut down the Warp Points to my systems, as both came from the same Klingon held system. (A Gas nebula)
I then deployed the two Star Killers in heavily populated and well equiped Klingon Systems. Both systems had over 200 ships each fleeted, 20 + worlds (Fyrons Q-Mod) which were all fully populated and defended by Weapon Platforms, Satellites, Troops, Fighters, and mines. (Only the Federation does it better.

)
I blew both systems to hell and started construction of System Gravitational Facilities in each of my systems.
About 20 turns later I produced another 2 Star Killers and deployed them to a Cardassian system that had a System Gravitational Facility (SGF) in order to wipe out the system and close the WP.
I was lucky and the first planet I attacked had the SGF on it, thus I was able to close the WP, but not before my 2 Star Killers arrived. I wiped out the entire system with my conventional fleet, and cloaked my two star killers and ordered them into adjancent systems.
One was destroyed by mines. (Well placed and abundant)
The other arrived on target, a peach system full of Cardassian worlds, ships, and population in addition to a massive 150 + fleet of Klingon Baseships.
I gave the order to decloak and destroy the start with a smirk on my face. I was about to deliver a crippling blow to the Klingons while blooding the Cardassians Noses.
Nothing happened. The Damned Cardassian AI had built a counter measure Facility.
My ship was attacked and destroyed.
I am using standard AI, no major modification except to the Borg, Klingon, and Romulan races. The two races that are using totally non-malfador combo AI wwere the Borg and the Romulans. (The Klingon are using God Emperors / Maldor AI combo.)
The ranking for most of the game has been:
Klingon
Cardassian
Federation
Ferengi
ME (Species 8472)
Romulan
Breen
Borg
The Klingons have taken out the Borg, did so early on in the game.
I have taken out the Romulans. They were weak.
Right now the standings at turn 400 (Game time 40 years) are impressive.
8472 (me)
Score = 25.5m
Resources = 17.1m
Research Pt's = 1.8m
Intel Pt's = 913.0k
Tech Level = 316
Systems = 57
Population = 1.4t
Planets = 1337
Units = 9111
Ships = 555
Bases = 96
Rank = First
Klingon (Combo AI by God Emperor - Malfador)
Score = 18.2m
Resources = 4.4m
Research Pt's = 117.6k
Intel Pt's = 110.2k
Tech Level = 173
Systems = 55
Population = 423.8b
Planets = 790
Units = 4659
Ships = 771
Bases = 42
Rank = Second
Ferengi (Modified Malfador)
Score = 6.7m
Resources = 3.4m
Research Pt's = 203.1k
Intel Pt's = 117.6k
Tech Level = 125.2k
Systems = 21
Population = 442.8b
Planets = 260
Units = 8661
Ships = 144
Bases = 15
Rank = Third
Cardassian (Modfied Malfador)
Score = 3.4m
Resources = 36.2k
Research Pt's = 10.1k
Intel Pt's = 0.0k (Very Odd - Will have to check)
Tech Level = 135
Systems = 21
Population = 126.1b
Planets = 276
Units = 951
Ships = 128
Bases = 19
Rank = Fourth
Federation (Modified Malfador)
Score = 3.0m
Resources = 1.5m
Research Pt's = 102.7k
Intel Pt's = 110.2k
Tech Level = 147
Systems = 15
Population = 273.5b
Planets = 195
Units = 5675
Ships = 66
Bases = 6
Rank = Fifth
Breen (Modified Malfador)
Score = 735.7k
Resources = 228.8k
Research Pt's = 86.4k
Intel Pt's = 41.1k
Tech Level = 92
Systems = 3
Population = 38.9b
Planets = 48
Units = 1409
Ships = 24
Bases = 3
Rank = Sixth
Borg - Defeated by Klingons
Romulan - Defeated by Me
NOTE: I have been hitting the Federation hard and have taken 8 of there systems and the worlds contained within. Additionally I have blown up one of their systems with a Star Killer. (Needed to close the Warp Point ASAP, and that was the fastest way to clear the effects of the Gravitational Facility.)
I have many Cardassian held systems and will take out the Breen next.
When I set the game up, I set the AI to max bonuses for best game play value. There are neutrals, but I have only encountered one, and they surrendered when prompted to.
Right now the AI is impressing me. Very fun game.
