wot measures have been put in place to stop the game gliching out like in oblivion,fallout 3.fallout new vegas in those games there were some big gliches and as grathics get better so do the dangerers of half a mountain disapearig in into a black hole like in fallout 3

How can you put measures against glitches at all, other than fixing them when they find one?

Glitches are there because they go unnoticed in development. Tes games are so huge that it's virtually impossible to find them all for the vanilla release.

They've tested each variable in the game by allowing it to run for 300 hours straight.