A lot of people in the demo just play as the Grenadier class, so I guess that explains why the turret tactic works overtime. And in general people in the demo suck ass at the game completely, I've gotten enough points to use the mauler in the first round and kept trucking until the middle of the 3rd round.
Yeah, basically doing a breakdown just for Engineer on locust combat:
Tickers - His nemesis. They tear through barricades which he needs to fix up, so a quick turret keeps them away giving him time to fix it up. During the cooldown is the main time to strike, but he can just walk up and melee them away.
Wretches - Also an engineer specialty. They go down quick, but if multiple wretches are present and they mix up their lines of approach leaping over barricades can confuse the turret and 2 melee hits = death. They are more effective on some of the other maps due to more hiding space and special climb areas.
Grenadiers - They go slow and have to respect the turret. Not too hard for them to just wait it out, and I believe a single grenade can take it down too.
Kantus - Shouldn't be in the front to get hit by a turret.
Now, I pretty much think the entire second tier shits on him.
Rager - Makes it VERY hard for him to fix barricades. A common tactic for an engineer is to place a turret right in front of a barricade while they take cover and repair. Since this is acting like a weapon, his head is exposed and he is motionless leading to an easy headshot. Which also immediately removes the turret. Plus they can rage if close and take it head on.
Serepede - Shotgun is so damn slow to really do much for them here. Only effective means of attack is to place a turret behind it, but when they are destroying your barricades that is pretty much impossible.
Mauler - Pretty much a literal bitchslap to everything he can do. Shield negates turret and the spin attack can let him be offensive during the short lifespan of it. If he is trying to fix a barricade the main attack will do heavy damage to it and kill him outright.
Corpser - Again, very little he can do. Thing mutilates cover(and him if he's fixing it) and it can hide from the turret long enough to make it go away, and outright destroys it in one hit.
His weaknesses can be remedied by other players and smart playing in general, but he really needs that turret the way it is. Overrun in general is pretty much a slow buildup to being decimated by the locust and the better team will just last a little bit longer.
Is this game worth buying for the campaign?
-Loved Gears 1. Beat it 4 times.
-Gears 2 bored me to tears.
-Gear 3 was great. Didn't feel the need to replay, though.
It depends. It is very different compared to the other games and doesn't really have much in the line of downtime and buildup. It's essentially a ton of combat rooms but right from the start it fires on pretty much all cylinders, throwing out 5+ wretches, boomers, boltok users, etc. along with having special Declassified objectives that you can opt into that make it harder either by beefing up the enemies or hindering you in some way.
It is basically pure gears combat dialed to 11, and I personally am really enjoying it. But I can see why other people would be down on it.