Combat and police response

Combat in Grand Theft Auto IV has been reworked to include a cover system.

Gunfights in GTA IV are conducted using a third-person system.^[6] The game's cover system allows the player to deftly move between cover, to fire blindly, aim freely, and target a specific enemy. Individual body parts can also be targeted.^[7] Additionally, Niko can perform "cinematic executions" at certain points in the story. Niko's health is shown by a green semicircle on the left side of the mini-map, while a blue semicircle on the right represents armour. When locked on a target, their health and (if applicable) armour level appears in the target circle. There are more hand-to-hand combat moves than in past games in the series, namely punching, kicking, "alternative" punching, dodging and blocking, disarming an opponent, and counter-attacking.

If Niko is injured, he can recover health by eating, drinking soda, sleeping, using medical kits, using his after pressing X mobile phone to call for paramedics, using a "cheat", calling one of his girlfriends for medical advice, etc. Body armour can absorb gunshots and explosive damage but is gradually used up in the process.^[8] If Niko's health level reaches zero, the action stops, and he re-appears at the nearest hospital having lost some money (but retaining his weapons).

The Wanted Level system has changed from previous Grand Theft Auto games. Although their star levels are retained (which increase with the number or severity of criminal acts by the player, with corresponding increases in law enforcement interference), the law enforcement agencies which may pursue the player have changed, with the focus on making them more realistic. In previous Grand Theft Auto titles, as wanted level rose the player was pursued by increasingly well-armed and violent agencies, culminating with the Army at the highest wanted level. In Grand Theft Auto IV, the police are assisted by NOOSE (National Office of Security Enforcement — a parody of SWAT and DHS^[9]) officers at a three-star wanted level, who are joined by either NOOSE's Tactical Response Unit (a parody of the NYPD ESU) or FIB (Federal Investigation Bureau — a parody of the FBI) at even higher wanted levels. In this case the army is not available in the game. Like previous GTA games, a police helicopter pursues the player at a three-star wanted level, but this is replaced by a helicopter gunship at the five-star level, though it utilises sharp-shooters rather than its mounted gatling guns.

When the police are in pursuit of Niko, a circular search area appears on the map in which the police will be looking for him. The area grows with increased wanted level, and re-centres itself on Niko's location if he is spotted by the police. If the player escapes from the search area without being seen by law enforcement units, and can stay out of sight of police for a short time without committing any more crimes, the search is soon aborted. This is different from the previous methods of evading authorities such as changing clothes and collecting bribes. Wanted levels can also be lost either by changing the colour of the current vehicle, or entering a safehouse and going to sleep. The player has the option of attempting to escape arrest before being handcuffed, at the cost of increasing the wanted level by one star (the traditional bold letters that note "Busted" for arrest are absent), although the police will immediately open fire. However, this move is only possible with a one star wanted level, as the police will focus more on killing the player at higher wanted levels, rather than arresting him, and is only possible when the player is on foot, as like previous games, the player is immediately arrested when pulled out of a vehicle.^[7][10][11]

[edit]Vehicles

Common to the rest of the series, vehicles are the predominant means of travel in GTA IV. Every vehicle in the game uses the in-game minimap as a GPS device. "Way-points" can be placed on the map, plotting the shortest legal route between Niko and the destination on the minimap. The player can also hail a taxi or cab, which allows travel between destinations without having to drive. The journey can also be skipped, so the player arrives at their destination instantly. However, if the player decides to skip the journey, it will cost them more money. During car chases, the player can focus the camera on the target vehicle by holding the cinematic camera button, and also free-aim and fire out of the vehicle using one-handed firearms. The player may also dropgrenades.^[12] The player cannot pilot fixed-wing aircraft, which was possible in previous games of the series, but can still pilot helicopters. The game also lacks parachutes, though they were later reintroduced in Grand Theft Auto: The Ballad of Gay Tony. The player can also take the Subway system. This allows the player to travel quickly between stations across the city. The service is very cheap, as the cost is only $1 per station. There are 26 stations in total across the map. However, a 27th station, called Dukes Blvd is closed for maintenance.

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