Sound like a decent Fut 15 Coins basis for a shooter? It is, and the Source-engine-based visuals are reasonably good, though a long way from something modern like Crysis. The level design is attractive too, even if it seems like you're running from one Vietnam movie set to another. One moment you're racing through a misty jungle, then you're dealing with booby-trapped VC tunnels, and then you're in a run-down village. You get the picture. At least much of the scenery is chilling. Bloody streaks (trails?) are everywhere, and it seems like you can't walk two feet without encountering a beheaded soldier mounted on a wall, a buddy with his legs blown off, or some poor guy impaled on a bunch of bamboo spikes. The audio is serviceable. M-16 and AK-47 fire sounds like it should, although there isn't any thump to the rat-a-tat-tat or explosions. Most of the voice acting is well done, at least by B-movie standards. The actor playing Walker sounds a lot like a young James Woods, which adds a bit of Hollywood class to the proceedings.
But there isn't much game here. ShellShock 2: Blood Trails is very short. The solo campaign can be blasted through in four or five hours, and there are no multiplayer modes, so when you're done, you're done. Replay value is nonexistent due to the simplistic nature of the level design. Actually, "design" is probably too strong a word for how these levels have been slapped together. There isn't any artistry here. Every level is a straight run from point A to point B, with pauses along the way at choke points where you have to hunker down for a few minutes and gun down respawning enemies. Basically, you run along until you meet up with a bunch of fellow Yanks, then you stand still and help them shoot the horde of VC and/or zombie wannabes that start spawning from nearby rooftops, jungle pathways, and the like. Enemies never give any thought to what they're doing and typically just run out of their spawn locations like clowns out of a funny car. You can simply line up these spots in your sights and blast away at the respawning bad guys until the showdown ends and the game tells you to get moving.