This map is so interesting, no bug, large and there is no shortage of hard parts.

It's really nice and refreshing to play this map bringing back MSG SOLID memories. I also liked the traps set for me it's well placed and in fair difficulty. Thank you for this map :)

Well-thought atmosphere, traps, and missions. I had a good time.

So after playing this map some more from time to time after reviewing it before, I feel the need to rewrite my review. First off, I have not played or watched Metal Gear Solid, so I don't know how faithful this campaign is to it; although that doesn't excuse bad level design since this is still Left 4 Dead 2. I don't really have any significant complaints about the first level, but one I do have applies to the entire campaign, the lack of basic instructions. By that, I mean that there is no good indication that you have to hit the security cameras in order to prevent alerting the horde. Taking the player's view away from the survivors (which, by the way, you should not do unless done correct in every area) doesn't properly convey to the player that the security cameras are a thing. They're easy to miss too. This could have been easily solved if you just used the game instructor to warn the player about it. Other than that, I have nothing for the first level except for some little nitpicking like why do we have to call and wait for the elevator at the beginning when there's very little to no threat at all while waiting. There's already a problem at the beginning of the second level. Nothing warns you that you're walking into a minefield unless it's already too late. This creates a bigger problem since now the survivors are weakened and you have to face a Tank almost immediately afterwards. My other complaint about this level is the voltage switch thing. If no one has a Pipe Bomb, you're forced to bring the Grenade Launcher from the previous floor, and it's not a good weapon for a level that's composed of narrow pathways. It doesn't help either that the room you get it in happens to be the same room where a stray bullet would kill you all. I'm sure this is for the campaign's ties with Metal Gear Solid and this is quite nitpicking, but is the voltage switch really necessary, or fun? It doesn't contribute anything to the game play except for forcing you to go out of your way to remove it. I do like how this level has two paths to reach the next safe room, and that the trade-off between the two is good. Another problem at the beginning of the third level. Nothing tells you that you need to start the generators in order to get to the switch to unlock the path to the safe room. Let me put emphasis on TWO generators. Since the first generator is easy to miss, the likely scenario is that by the time the player figures it out, they're already at the second generator, which is very far away from the other one, resulting in a long annoying backtrack. It doesn't end there, because the player still wouldn't know that there's more than one generator since nothing tells you. Level Four. The problem with the security cameras apply here, except that it's a little more annoying since you pass by them more compared to the first level. A minor and personal problem is how not obvious the path to getting to the power switch is. Clever lighting would be great, or I'm just stupid. I feel like having to face a Tank for failing to get to the door after the elevator is too much punishment. Consider the fact that you had to deal with the horde while riding the elevator, you'll be left with little ammo afterwards... which creates a bigger problem since you have to face ANOTHER Tank in the next room. On the subject of these two Tanks, a common problem with Tank encounters in custom campaigns is that the areas you fight them in is very disadvantageous to the survivors. These two Tank fights are no exception. There's little room to run and evade the punishment Tank. Even if you didn't have to face that one, the Tank in the box-filled room is already more than enough of a problem. There's still little room to run around in, but the big problem is that the Tank can punch all these stacks of boxes that are everywhere to instantly knock you down, and sometimes even trap you. Although I didn't often have much trouble with this Tank in my play throughs, it doesn't excuse the terrible design it has. The last level starts off okay, except for that security camera at the switch room. It's almost like it's there solely just to troll the player. I have to be honest: I'm not even sure if this level is intentionally designed the way it is. Only a matter of a few seconds after starting the finale, the music that indicates that rescue has finally arrived plays. And while writing this review, I realized that the exact moment when the music plays and the game gives you the 'rescue has arrived, get on board' message, is the same moment when the elevator is almost at a safe height for you to jump down to. I really hope I'm mistaken on that one, because it's beyond stupidity to sacrifice game play and what's supposed to be the climax just for that one unimportant moment. Anyway, the actual finale itself isn't really exciting. Since the rescue has arrived event was already triggered, most of what you'll encounter is about two Tanks and some Common Infected here and there while waiting for the path to clear. The time it takes for the path to clear isn't even long, around a minute or so. I find getting to the rescue vehicle to be too hard, and almost always require that you bring Adrenaline and ditch your teammates just to finish the level. The main problem is that you have to face Tanks near the beginning of the area. There's little room and it's easy to back yourself into an obstacle or a dead end while fighting a Tank AND Common Infected. A minor complaint I have with this level is how Survivor bots sometimes can't pick up any of the items in the finale area. Weapon distribution is kind of done poorly, there are Tier 2 weapons already in the first level, floor 3's full of it along with grenades and Incendiary and Explosive Ammo. Although realistically and with Metal Gear Solid in mind, this makes sense. I think there needs to be more melee weapons though, I think I only came across like one per level. Considering what kind of finale it is, melee weapons would definitely be helpful, but I don't remember ever finding one in the last level.

I honestly couldn't figure out how to beat the second and third chapter. Other than that I quite enjoyed it. Nice map design. No bugs/glitches. Nice work.