How do you beat urban sniper 2

Urban Sniper : Vengeance (Urban Sniper 2) is the 2007 sequel to the 2006 online game Urban Sniper, a stick-man shooting game. Depending on the outcome of the missions, you can continue to take on the gang of Don Pedrito, or be killed by his snipers, or lose your source of information. You can only lose two missions (level 1 and level 4), and make up for them, or the game is over.

1. Big Joe's Men - all have glasses, and there are about 15. Shoot any that are walking toward the right or left edge, and any that start running.

1A.* (Bank) If you don't get them all, you have to battle snipers as you wait for the accountant to come out of the bank. He's the guy with the cigar. Keep your eyes on the two tall buildings, as snipers can appear on any floor, and you must kill them before their timer reaches zero.

2. Parking Crew - There are 5 parking officials (wearing caps) that work for Don Pedrito. Shoot all 5 to win. *You do not actually have to shoot ANYTHING -- you won't win the level, but it will not affect your game status.

3. The Hotel Wandah - Snipers will appear in the parking structures, and you have 5 seconds to shoot each one. Meanwhile, at the hotel, two guys will try to slip out, the first one wearing a cap, and the later one smoking a cigar. The game sometimes glitches and does not send one out, making it impossible to win.

4. The Shipment - While killing snipers, shoot the guard in the tower, then shoot the small square locks on the three warehouse doors, so you can kill all of Pedrito's men and blow up his ammo.

4A.* (Marathon Man) - If you don't get all the Ammo guards, but survive the snipers, you have a second chance by shooting a runner in the marathon. He is the only one wearing sunglasses. Using the Zoom feature of the flash player makes this much easier.

5. Trouble - Pedrito's gang and the Oriental Cockroach Gang are meeting at Foggy Park to hunt you down. You need to kill them all while avoiding snipers firing from the buildings in the fog. Fortunately, one of the Don's helicopters comes too close to get a look, and you can drop it on the whole group. Shoot five snipers, then the pilot, then another sniper as it falls. You may have to finish off a survivor or two, but this is rare.

* Just Skipping Missions 1 and 4 *
Because the game sets you back to the start if you lose too many or get shot, many players cannot advance consistently by winning all five levels. On mission 1, guys run off the screen, and on mission 4, the snipers prevent you from effectively picking off the trapped guards. So rather than try for a score of 5-0, most players play for 5-2, deliberately skipping missions 1 and 4 to play the much-easier missions 1A and 4A. Almost all video walkthroughs show this and not how to beat everything. However, for those just out to see all of the missions, this is a reliable method.
The score is 4-3 if mission 2 is ignored as well.