A very rare type of takedown achievement tactic known as "Splashdown" which is very difficult to trigger and requires you to be very close to the water then ram the AI cop or racer opponent towards the water without you falling with them to trigger this, which will result in a few tries.
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https://www.youtube.com/watch?v=PmKPqZAUmRw
The Cowardly NPC Black Driver who drives just about any vehicle in GTA SA whenever the game loads a NPC in a car finally fights back!
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https://www.youtube.com/watch?v=3CIDaxMRciE