These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Earth 2150
Crowning Music of Awesome: The music has been specially composed for the game, giving each side its own specific type of music. Eurasian Dynasty has pompous, militaristic classic music fitting its blunt, crude aspect; Lunar Corp eerie, spacey sounds akin their space hippie-ness; United Civilised States hard rock fitting their industrialized nation. The Moon Project takes this already awesome music, and adds an overproduced futuristic feel to it. Then there's the three sides' promo clips, where the UCS clip is structured more like a music clip (with Nukes) than a propaganda clip.
The sequel, Earth 2160, comes bundled with a soundtrack CD, and given the nice selection of atmospheric tunes, you can't really blame them.
Game Breaker: UCS plasma cannons, hands down. Insane damage, very high rate of fire AND infinite ammo.
And The Moon Project adds Anti-aircraft plasma cannons making plasma weaponry even more overpowered.
Until long range artillery level the towers.
Also, aircraft in 2150's campaign, due to the AI's love of anti-ground only energy weapons.
Les Yay: During one Mission Briefing of the Neo Campaign in the original game (playing LC and deciding to join with the ED) Neo mentions that in the case of Fang's superior not going with his methods, he will release videos of her making out with a girl from the info department. She is understandably very angry about that.