Resident evil code veronica knife only with a rank first half

I don't own the rights to CAPCOM. i used hk golden Mr a strategy for knifing the Dr zombie how ever i got unlucky and he broke out of glitch quickly so i had to improvise and use my strategy. also the first tyrant encounter is very luck based with the timing of your attack and his . i get to him 3 times prior and was killed so this was my 4th attempt and was happy to get past him.