Now let me start with i have never played any previous Red Factions so this is a new franchise for me.
Now I've seen some reviews which said things about the story being bad and lack of enemys and when i first started playing i agreed with them but! after the 1st few missions you get into some walker(L.E.O i think) and things take a turn and its chaotic and fun and i would say some of THE best vehicles/vehicle missions I've ever played before in my entire life of gaming.
The destruction is amazing from tearing a small section of a wall out or leveling an entire building it never falls the same way twice, what adds to the destruction is the weapons you can use, from simple pistols/rifle/shotgun to a magnet gun which is probably the greatest gun in the game because there is nothing more satisfying than flying an entire building into or on-top of a single alien! :P The weapons vary from the magnet weapon which you can fling aliens/humans against objects or fling the objects at them or each other! Nanite gun which just disintegrates walls and aliens alike or a beam type weapon which just cuts through an entire building like slicing bread and a lot more unique and different weapons as well which really add to the game.
The Story starts off slow and the characters don't really have much effect on you but as you progress the characters get a little more Personality and there is some funny moments when you meet up with the army. The guy you play and the army sergeant have some great banter between each other which i love to see. The story lasts a good 8+ hours on normal, depends a lot on how you play as i loved destroying things and killing aliens in style :P but destroying buildings also gets you salvage which you can buy upgrades with and there are a fair amount of upgrades with different tiers you can level trough.
Graphics and game-play are smooth and from what I've seen flawless, the game runs amazingly well and there are no noticeable frame-rate drops when things are even hugely chaotic with multiple aliens shooting at you and buildings collapsing, weapons sound really good and are all great fun to use. Vehicles handle really well but i did find the plane/ship controls a little iffy at first and not the smoothest experience trying to fly it.
Nano ability's to repair buildings and also do all this without a hitch and being able to tear down and rebuild over and over is great fun and good for ammunition against the enemy.
Infestation - Its chaotic and an insane amount 4 player co-op fun, with the destruction and weapons and nano ability's make it feels more unique and not a direct copy of the Gears Horde mode. When you get to high level/waves it gets more and more chaotic and what is nice is its not all about staying alive, some of the maps are about keeping a structure standing while also fighting off waves of aliens which mixes things up a little and is great fun.
Ruin - If you buy this game new you can play it fine as you get a code on the manual, if you buy used you will have to pay a little extra for the ruin mode. Its all about destruction and its great fun, you can play challenge mode which you just aim for a high score and compete with others via leader board or you can just go free-mode and destroy buildings and cause havoc however you like. Its simple but very fun to do and addicting :P
Overall this game is amazing and i can see myself playing it for a good few months down the line.
This to me is the best game to be released this year by far and i would give it an 9/10.Brilliant game just a shame about the no PvP(PlayerVsPlayer.