an excellent add-on for GTA, with some oustanding new features...
This time, the story is about of 2 other guys, that do the same thing, as NIko Bellic: tearing apart Liberty City.... so there is no need to explain anything about Liberty City itself: we already know it very well.
Regarding the graphic engine, there is nothing to say: I have not seen anything different from GTA 4.. no improvements, no flaws. exactly the same stuff. I guess it does not need any. it is quite good as it is.
Gameplay. on one hand, is the same, on the other hand, the creators added many new (not in content, but in concept) missions, that are just great. I mean, there is a lot airborne (chopper related) missions, which give an absolutely incredible touch to the game. you can even use a combat chopper (with a tender name "BUZZARD") equipped with missles and heavy machineguns... Another great stuff added is a parachute. jejejeje. Awesome. now you can jump from the chopper, or from a building, and have a possibility to land in one piece...
Weapons: another great detail, a lot of new firearms, that can not be bought, but you can pick up them and use, as far as you have ammo. one of the most exciting is the shotgun with explosive ammo... absolutely amazing stuff.
the missions area bit intense, whiche make them even more intersing and immersive.
Story. really great, since it is related to original GTA story, there is a lot of interaction with the characters we already know... and you can live events behind original GTA, from other point of view... I were really glad to meet Niko Bellic, giving him a hand in a shootout with the police... This kind of story reminds me Pulp Fiction Movie... Both episodes offer a game, from points of view of pretty different characters, which make this game much more immersive.
As conclusion, I´d say the GTA: EFLC, is a great expansion for GTA, since it offers some new and good stuff, without changing the essence of GTA itself...