some one help me please with chapter 3 , please

[umindx]

i reached the area when you get this message ( find something powerful enough to open the door ) i've tried everything from grenade launchers to dynamite but nothing works and the door on the the top of the stairs wont move no matter what i do , please can some one tell me in clear steps what to do exactly to reach the top of the hill ?
:!:

[cocolapin]

hihihi
u must go back and find a larg door at 1rst "etage", then u go up, up, and u will find grenades near cannons :)

[contra]

I believe you need to find a Geballte Ladung.

I remember there were a stash of them near these cannons firing on near the top of the hill.



If you still can't find it I'll post a vid that I took earlier where it shows me doing that part.