Heartbeat Sensor



The Heartbeat Sensor is an attachment used in Call of Duty: Modern Warfare 2. The attachment allows the user to track multiple targets, somewhat like UAV and similarly to the motion trackers in the Halo games (though the latter is a 360 degrees detector with immediate update, built into the armor) and notably, to the motion tracker in the Aliens movie (despite it is not a separate piece of equipment). It displays the positions of people who are fairly close to and in front of the player. In the campaign, the display screen can be folded out from the side of the weapon and folded back in again. The first time it is used is in the level Cliffhanger, where Roach finds himself in near white-out conditions. It is used also in the level Just Like Old Times if the player as Soap swaps his weapon to the Silenced ACR. The sensor uses some kind of IFF system to tell the difference between friendlies and enemies. Friendlies are blue dots and enemies are white. In multiplayer games, friendlies appear as green dots instead of blue and enemies appear as red dots instead of white. The new version of UAV jammer, Cold-Blooded, cannot bypass the sensor; only the perk Ninja can. The EMP killstreak will render it inoperative for the duration of the killstreak, however, so that only static can be seen on the screen. This attachment is compatible with assault rifles, light machine guns, and sniper rifles. It is also seen on the AA-12 in a few Special Ops missions such as Acceptable Losses. To unlock the Heartbeat Sensor the player must get 15 suppressed kills with the weapon. This is probably easiest to achieve in Hardcore mode as all silenced primary weapons kill in at most 2 shots even without Stopping Power in this mode.



Advantages

 * The Heartbeat Sensor allows the user to locate non-firing enemies without the use of a UAV. This makes it useful in Hardcore or when a Counter-UAV is airborne.
 * Unlike the UAV, the Heartbeat Sensor can detect players using the Cold-Blooded perk.
 * It is especially effective for snipers to have this equipped as it can alert them of an approaching enemy, unless said enemy is using Ninja or is coming from behind.
 * The Heartbeat Sensor helps its user locate enemies through any obstructions, such as walls and smoke screens.
 * When used by one member in Team Deathmatch who has a microphone, it can be useful when going into buildings after players hiding. The person with the Heartbeat Sensor can pinpoint and announce the location of the player(s) to his/her team.
 * A player can use the Heartbeat Sensor effectively even without looking at it, as the Heartbeat Sensor beeps when it detects enemies.

Disadvantages

 * There is a fairly long period of time (slightly longer than a UAV) between sweeps.
 * When reloading a Grenade Launcher, the Sensor will obstruct the middle of the screen.
 * Enemies with Ninja will be able to easily surprise someone using the Heartbeat Sensor. This makes the Heartbeat Sensor inadvisable for Search and Destroy.
 * This attachment is almost useless in third-person, because player cannot see the sensor, although the beep is still audible.
 * Players using a heartbeat sensor can inadvertently give away the positions of their teammates, if the victim watches the shooter's Kill-Cam.
 * In single player, the display cannot be seen while using night vision goggles. The sensor will glow brightly making it impossible to see.
 * The sensor only scans the area in front of and to the sides of the player. Enemies behind the player cannot be detected unless they are directly behind the player.
 * In two-player offline multiplayer, the Heartbeat Sensor is off the bottom of the screen on some guns (E.g LMG), making it almost useless, and a waste of an attachment. In three-player, only the bottom player experience this.
 * When using the Heartbeat Sensor some people rely heavily on it, allowing people using the Ninja perk to surprise attack them. Some say the Heartbeat Sensor can be a distraction at times.
 * The sensor can be very confusing in multi-story buildings as it will beep even if the opponent is on a different floor.

Trivia
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 * The Heartbeat Sensor does not pick up the heartbeat of chickens.
 * The Heartbeat Sensor cannot be folded back towards the gun in multiplayer.
 * The Heartbeat Sensor has a smaller range of detection in multiplayer. This was done for balancing purposes.
 * The Heartbeat Sensor has a range of approximately 30 meters in singleplayer.
 * On multiplayer, this attachment is available on all Primary Weapons except for Sub Machine Guns and obviously the Riot Shield.
 * The player will get a fuzzy screen when the enemy team uses an EMP.
 * It is strange how the heartbeat sensor can detect which people are enemies and which ones are allies just by their heartbeat. Of course, this is obviously just for gameplay purposes. A possibility could be that the player's allies have some sort of device on them that makes them a blue dot, instead of white or red.
 * In Special Ops, an AA-12 with a heartbeat sensor can be used. The heartbeat sensor is not available in multiplayer on the AA-12 or any other secondary weapon.
 * In real life, there are actually devices that sense heartbeats, but they are larger than the one in MW2, about the size of a radar gun. As the game takes place in 2016, new advances to reduce size may have been made.
 * There is a currently existing heartbeat sensor, but is extremly sensitive to electronic objects, rendering it useless unless in desert warfare.
 * The Heartbeat Sensor is very hard to use in split-screen mode because the screen is smaller. Only a few weapons will show the whole screen, such as a Barrett 50. Cal or M4A1 while other guns like the SCAR-H or FAMAS don't show the screen at all.
 * When aiming down the sights with the TAR-21 with a MARS Sight, almost the entire heartbeat sensor screen is still visible.
 * Many players say they often end up watching the Heartbeat Sensor more than they actually look in front of themselves. This is counteracted by playing as though you don't have the Sensor until it detects an enemy and makes a ping, the pitch of which ascending as the enemy draws closer.
 * Some players choose not to use the Heartbeat Sensor due to the fact that it can be distracting at times, often leading to easily preventable deaths.
 * The Heartbeat Sensor is nearly identical to the motion trackers used in the movie Aliens, down to using the same blips for moving objects, and the same static beep when no movement is detected.
 * Due to the Heartbeat Sensor's loud beep when it detects enemies, players can still sprint or aim down the sights just as often as they normally would and only stop when a beep is heard.
 * The beep is a lot more audible on the console versions than the PC version.
 * In campaign, the enemies pop up as white; in multiplayer, the enemies are red.
 * Some weapons' (SCAR-H, TAR-21, etc) reload animations differ with the heartbeat sensor attached. This is probably because the heartbeat sensor obstructs the charging handle (noticeable on SCAR).
 * In Battlefield: Bad Company 2, one of the characters, Sweetwater, makes a remark about how General Braidwood will send some Special-Ops soldiers, (Roach and Soap) with "Pussy-Ass Heartbeat Monitors on their guns.", which may be a reference to the Heartbeat-Sensors in Modern Warfare 2.
 * No real heartbeat sensors have yet been invented.
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Greetings, comrade!


Welcome to the Call of Duty Wiki, my friend! The fight for our glorious Wiki is everywhere, and we hope a true editor like yourself will stick around to help finish those edits!


 * Our policies are something you should get familiar with, so you can have a good understanding of our rules. You will find very helpful information on what is and is not allowed in them.


 * Recent changes is another great first stop for beginners, because you can see what pages other people people are interested in, and which ones might need fixing.


 * The Sandbox is a great place to test things out if this is your first time editing wikis. It is advisable to know what is commonplace on the wiki, such as templates and categories, and how to use them.


 * Have more Questions? You can also ask at the Help desk, or post a message on my talk page! But remember, my friend, we are all in this fight together, so feel free to ask anyone you like - we are always watching each other's backs!


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 * }|my talk page]]! But remember, my friend, we are all in this fight together, so feel free to ask anyone you like - we are always watching each other's backs!


 * Need more help? Look no further than the Help Directory. You can find assistance with almost any topic on Wiki editing. You may also place , followed by a question, on this page in order to get direct assistance from another user. You might also want to post on the Forums, as many good comrades will be found there, willing to help.

I look forward to having you here, my friend! It is always good to have another soldier on the front lines of editing! Because now it is our wiki...our users...and our pages!


 * -- Gtp1096 20:52, March 5, 2010 (UTC)


 * }