GTA 4's combat system was alright. You could push people, strike different moves, punch, alternative punch, kick. Disarm people, counter attacks.
It wasn't as fleshed out as Sleeping Dogs' system but it was okay, for GTA.
In GTA 5 the combat system lets you enter some forced artificial stance, it is just like in MAFIA 2.
The moves are scripted and every fight feels exactly the same. Definitely a downgrade to GTA 4.
Now this is a big disappointment. No crouching. No variation in the gunfight. Just look at everyone shooting, some stiff animation, people don't shoot from crouch. The moving is stiff, too. You just see people aiming in the very same position, shooting. Gunfights only let you sit around and wait until someone exits his cover and you leave your cover, too...it's all just not funny.
Then we got bullet time and the "X" which verifies a kill. Wow.
But what about bullet wounds like in RDR or MP3?
No jumping during shooting neither.
Now this complaint is not for the sake of complaining, and all ya'll who enjoy the combat system be glad.
But I stopped playing GTA 5 because of it.