Hello,
the soviets put the armored glass BEHIND the pilot.
up to late 1942/early 1943 they had armored steel plates before switching to armored glass.
for example:
Yak-1 armored steel
Yak-1b armored glass
Yak-3 armored glass
Yak-7 armored steel
Yak-9 armored steel in first (3?) series then switching to glass.
there is a nice little explanation of the windscreen of the MiG-3 here:
http://vvs.hobbyvista.com/Workbench/...MiG3/index.php
it is near the end of the article (Sep 28 2004) but you should find the whole article interesting also.
P.F.