You have to activate the mod :
Optimized ARB-Ahnenerbe WideGui 1920x1080 for WAC5.2
I give you the same link again :
http://www.subsim.com/radioroom/showthread.php?t=239167
all is inside and of course TDC On/Off button at periscope F3 view, Obs periscope view and uzo view !
if you have questions about this mod, please go to the topic's mod
