i think going under the map in castle might b patched on Co WaW
i wasnt able to do it after trying for 10 mins, so iunno.

the glitch is blocked now

there is another way under catle.......but its really hard ive never done it but on the red bridge on castle face towards the burnt sniper house go on the right railing of the bridge and jump to the last window on the wall and maybe just maybe u will slide in like normal and have the same glitch you did before the update if you could post a vid.