Okay, I remember seeing this movie on the TV in some channel back in 2000 on a Saturday night. The anime movie is basically set somewhere during 60's. But, it has an alternative history plot than our real world history. In this movie it is revealed that the Space Race was used as a cover up by both the US and the Soviets military for the deployment of their military forces into space. It is also revealed that sometime during the mid 50's a meteor crashed on earth. And this meteor contained a "liquid-metal" or something like that, which enabled both the US and Soviets to secretly build highly advance vehicles with amazing properties. One of the prime example being showcased in the movie is using the "liqud-metal" to build Hover Tanks. It is also revealed that all of this is kept a secret from the public(both in the US and Russia).
The main story starts on the Moon, with the American forces just recently (about 2.5 weeks) landing on the dark side of the moon. The movie follows the view point of an American Soldier named Collins and his platoon. Unfortunately, the American forces are forced off the Moon due to a surprise assault from the Soviets which results in the destruction of their main base. They then relocate to Mars, but find the Soviets are already there. Both sides here then locate alien artifacts, and the Americans also find a factory. The long-dead alien race that created the "liquid-metal" is also identified as the Cthonians, who inhabited a planet that is now the asteroid belt between Mars and Jupiter. It is found out that they visited Earth on several occasions, thus influencing Greek mythology. The Americans also learn of an ultimate weapon called the "Chimera" and head to Venus to learn more about it. Another Cthonian relic is recovered there, which also points them to Jupiter's moon Io. The Americans finds a third relic there, but this is stolen by a scientist defecting to the Soviets.
The Main Protagonist and his platoon are then deployed in Europa and are ordered to steal a Soviet fighter craft and tap into their communications network. The main protagonist and his platoon manage to quickly take care off the small Soviet Outpost in Europa and are able to successfully tap into the Soviets Communication Network. Doing so also reveals to the Americans the Soviets main base which is located on Saturn's moon, Titan. The Main Protagonist and his Platoon is then Ordered to Hold Back and clean up Europa, while the Main/Special Assault Forces is sent to Titan to destroy the Soviets Main Base. But the Main Protagonist and his platoon later learn that the Main Assault was a complete Disaster and that almost all of their Main Assault Force was annihilated. So, the Main Protagonist and his platoon are then sent out to Titan to rescue some of their surviving soldiers. It is here they learn that the Soviets were able to recreate the ultimate weapon 'Chimeras' by infusing the materials found from the relics and also the "liquid-Metal", into the blood of some of their Soldiers.
I think sometime later the 'Chimeras' become self aware and realize that the sole purpose of their existence is to destroy all life in the Universe. So, they quickly turn on their creator i.e the Soviets. Although the Soviets suffer a large blow to their forces they are able to escape from complete annihilation. Also, the 'Chimeras' after turning on their Creators they mysteriously blast off from Titan. The Soviets then quickly realizing their mistake in resurrecting the 'Chimeras' decide to ally with the Americans for help in destroying the 'Chimeras'. The Americans and the Soviets then join forces to regroup and launch a final assault. After a few weeks of reconnaissance the Americans and Soviets discover that the 'Chimeras' fled to one of the Moons of Uranus, called Titania. And upon further orbital reconnaissance they find out that the 'Chimeras' are producing more 'Chimera' like beings. So, the Americans and Soviets then decide they must destroy the 'Chimeras' production factory and their Main Base, before the 'Chimeras' assault force can grow larger. But, the problem is the Main Base is located on Sycorax and whereas the Production Factory is located on Titonia. So, they are forced to divide their already smaller force into two smaller forces. The Main Protagonist and his force are given the Task destroying the Production Factory in Titania while the other force assaults the Main 'Chimera' base in Sycorax. Also, it is shown that the Main Protagonist and all the other soldiers are shown to be really stressed out and worried. Because, they know that they are the only last line of defense. And at that moment they were the only force that was standing in between the 'Chimeras' and the fate of the 'Universe'.
I saw the movie only till here. I missed the ending. I wish I could remember the name of the movie so that I can complete it.