Can you go underwater in halo reach?
you can only go down 10feet any further and you'll die, Trust me i tried to make it deeper and it will only kill you no matter if you have the armor glitch on. You can build underwater maps but they have to built around calm tides because the water height between tides can make playing underwater impossiable. Vechiles however will have some trouble for example in underwater the speed of vechiles are reduced by 25% in water... not to mention gun fire sounds are also reduced to make snipers almost invisible so build with caution.
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