Gears of War 3 - House of Sand

At the moment, it's a relatively safe, quiet path ahead. When you get to an open desert looking area, you'll meet a new enemy. The Corpser Hatchling will dig underground and try to attack you with one of its claws. When it does this, try to dive to the side. You need to wait for it to come out of the ground and try to shoot its face when it attacks you or its backside if you can get behind it. Shooting its face is preferable but it's hard to get an angle where your shots land and you don't get hit. Personally, I find the digger launcher to be pretty useful against these guys.

Head through the gate once he's dead. Watch out for tickers and grenadiers from up above. Be careful of the Digger and Grinder when you finally climb up. Watch out for the ambush and by that I mean its part of a cutscene so there isn't much you can do. You'll encounter some grubs and butchers and once clear head through the door at the back.

On the other side of the door is some artillery. Immediately start running to the left and loop around to the artillery position. You'll come to Miners and eventually Diggers and Tickers. Be careful with all the explosions. Dodge first then shoot. Make your way to the top of the hill and climb the ladder. Right near you is a turkey (siege beast). Unfortunately, it's not all that easy to see but just lob some to the back and you'll probably clear the area a little. Of course, you'll get some Miners popping out of the ground so you can't completely clear the area until you move ahead. Head towards the gate at the back of the area. Grab ammo and end the chapter.