Drive in Sci-Fi: Plaet of the Vampires (1965)

Yes, even back then they created shitty vampire movies. Two spaceships are sent to investigate a mysteriuos planet. the spaceships themself look rather too spacy for their own good. what is the point on carrying around empty space the size of a concert hall? when did the liftoff become so cheap.
They find some strnage signal on the planet, but they cant scan the planet because "its made of fog". They decide to land (on a planet of fog???). The technobable in this movie is amazing, its almost like watching data from star trek, except that everyone does that. Not bad in itself, but some things sound ridiculous.
They loose contact with another ship called "galliot" that supposedly was landing before them. so they decide to make a rescue instead of a landing, which involves landing on the planet. the planbet starts increasing gravitation on itself to 20G and so they crashland. Straight after that they start fighting eachother for no reason. But it only happens for a moment and then their back to normal. One of the crewmember manages to get away in this bad state of mind and leaves to the planets surface that isnt made of fog after all. its made of rocks in weird formations. They get the crewman back, make contact with spacestation or whatever and they acknowledge that they hear it. They have a problem though, the ship is ruined. So they have to go on foot and attempt to rescue the first screw. They find the second ships crew, dead from fighting each other. Looks like they are the lucky ones.
They investigate the ship and find good equipment, but they keep searching for the missing crew members.
They find the rest of the crew, dead, and they burry them. but then they rise from the graves of metal just like vampires should and make weird faces.
They think whether the planet has indigenous people or not. They have 3 days to lift off or their stuck due to planets orbit. they start working on it and a captain fills his journal, very sincerely. They keep the nightguard though, dont wnat to take any chances. they see some orbs flying around but no idea what those are. They find one of the zombies, kill it and bury it again. then they just go on doing thier work as if nothing happened. They also find some ruins and a HUGE creature skeleton. he seems to have been dead for a long time though so they go inside to investigate. They get trapped in there, escape it, find out a way to control the door mechanism in there and then go back home.
the rest of the guys have found that the graves are empty yet again and the mystery begins, whos an alien, whos a zombie (or is it supposed to be a vampire?) and whos human? and yet they still try to get back home by fixing the ship. They find out that one of them is vampire inhabiting the body. They are simply fighting to survive jut so they can get out of the planet, they want to continue to exist. They suggest going back together and live in harmony or none returns home. so the humasn chose to never cooperate because 2 vampires living among humans is such an awful exchange that is not worth saving 6 men lives.
They continue to try to fic the ship and also they go on to explode all the dead with nuclear fuel from their ship. now thats a plan i like, nuke them to hell.
The aliens have the ship taken over so the fight begins and its basically a shooter now. Three people escape with one fixed shuttle. Two of them however are already infected. and the third one decides to stop them from reaching earth. he smashes the ships meteor deflector and they must land on a closest planet. turns out, it is earth, so we are now invaded by space vampires. Hehehehehe.

Story: 7/10. reasonably well told.
Acting: 4/10. bellow nominal, but can live with.
Sound: 4/10. not terrible, but nothing great either. a lot of "space sounds".
Sci factor: 8/10. they worked on thier technobabble well and the rest was ok too. pretty high on the science department.
Lasting Appeal: 7/10. space vampires invading earth to steal our bodies? me likes.
Overall rating: 6/10.