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Under The Radar achievement in GTA 4

Under The Radar

Fly underneath the main bridges in the game that cross water with a helicopter.

Under The Radar0
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How to unlock the Under The Radar achievement

  • FehlgeburtFehlgeburt
    Locked 17 Jan 2009 17 Jan 2009
    map of the locations
    External image

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    Brett Evans15Hey guys, I did checked the stats and it’s still good because It doesn’t count to 100% on both of them in 5 Helicopter Tours and 14 Bridges to get two achievements is Sightseer and Under The Radar.
    Posted by Brett Evans15 On 18 Apr 20 at 20:11
    The S bot 9000Here's an HD video that has a map at the beginning since the map from the OP isn't available anymore: https://www.youtube.com/watch?v=Xva1icdUf20

    Also you can earn this as soon as after the second mission of the campaign (because your phone isn’t fully unlocked until after that mission). Spawning in helicopters doesn’t void the achivement
    Posted by The S bot 9000 On 26 Jan 21 at 05:08
    JGXeniteThanks for linking to the video above 👆 - this was a great guide to where all the locations were (and as someone else mentioned, you can call 359-555-0100 to spawn a helicopter at your location. Just be careful to spawn it in an open-ish space like a large intersection!)
    Posted by JGXenite On 31 Dec 22 at 03:16
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  • mistress3riplemistress3riple
    30 Apr 2012 30 Apr 2012 15 May 2012
    Not sure if it's solution but it might help.

    If you flew under all 14 bridges and the achievement didn't pop out then it's possible you didn't fly right under the first bridge (from the sea) in Alderney’s industrial park. It counts if you flew under it right from smokestack. First I flew the bridge under the water and it didn't count.

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    SledgeHammer jrSame here. Utterly ridiculous that only one specific part of the bridge counts towards the flyunder total, but there you go.

    Thanks for the tip.
    Posted by SledgeHammer jr On 19 Oct 13 at 16:41
    Killerfox UruFuck this cheevo! But I got it thanks to you.
    Posted by Killerfox Uru On 23 Sep 15 at 03:11
    EthigyGreat solution. I ran into the same problem.
    Posted by Ethigy On 20 May 18 at 05:04
  • JusticePRO11JusticePRO11
    25 Sep 2010 02 Jul 2010 26 Oct 2010
    To obtain this achievement you need to fly under all 15 main bridges in liberty city. So you must go through all of liberty city bridges and when go under the right bridge on your top left corner there will be a text saying "14 more under the radar bridges or something like that. Good Luck! P.S I do have this achievement
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