Been playing FC4 on PS4 for about a week and 1/2 and am just under 50% completion. My feelings on it are (predictably) much like how I felt playing through FC3. The concept and vibe are killer, but the execution is seriously flawed.
PLUSES: Visually and sonically, the game is gorgeous. The sandbox and opportunities for experimentation and tailoring the gameplay to "your style" are outstanding. The weapon/item variety and general XP progression system are fun and satisfying.
MINUSES: There are a lot of semi-broken mechanics and nearly constant trial and error throughout the game. The player animations are slow and awkward, leaving you vulnerable and exposed to danger when you most need that twitch response ability. The wingsuit's functionality/usefulness is an absolute joke, unless you're at ultra-high elevations with sheer drop-offs. As a result, the hang glider is also functionally useless, unless you bail over a body of water. In FC3, water was (obviously) never an issue...FC4's water accessibility is much more limited. After dying twice attempting to use the hang glider/wing suit, I just carefully slide down most cliffs now, ignoring those "tools" altogether. Also, the "Death From Below" perk? After almost 25 hours playing, I've yet to successfully execute it, despite numerous instances going out of my way to hide underneath climbable ledges, right below enemies. The AI is ridiculous; I'd say on the verge of being prescient. Don't get me wrong- realistic AI awareness and behavior is great...but downing a guard silently with an arrow to the head from thick cover, only for another guard 20 yards away to spot his body and immediately sound the alarm for reinforcements, which arrive 10 seconds afterward?! Come on now...The checkpoint/spawn system is ridiculous- trying to get to a destination, dying, and then respawning WAY back at an inconvenient outpost (often multiple times) gets really tedious. Finally, the 'dynamic events'...EVERY time I leave an outpost/safe house to set out on a mission, I'm inevitably radioed within seconds that I need to come back and rescue them from hostile intruders...every. single. time. And those dhole packs...you can pretty much count on your 'stealthy outpost reconnaissance' being ruined by those pesky a**holes 9 out of 10 times. And not just three or four dogs! One time I literally had to take out a pack of SIX at once.
Just like with FC3, I'm going to see this game to its conclusion and mess around with the online multiplayer a bit- I'm definitely enjoying aspects of the experience. However, the game trips over its own feet left and right, which is a major bummer and immersion killer.
Right now, having completed about half the game, I give the single player a 6.75 out of 10.