(You) wake up in the guest house of Roman Polanski and Sharon Tate's home in the early morning hours of August 9, 1969 (idk why you're there, maybe Tate and her friends invited you over for an orgy or something lmao). (You) look out your window just in time to see members of the Manson family cutting the telephone line and blocking off the only exit with a getaway car. The heavily pregnant Sharon rushes in, begging (You) to save her from the crazed hippies coming up the hill. Of the six people present, (You) are the only one with any experience with weapons, because rich celebrities are retarded, so it's up to (You) to save the day.

The Rules:

>you get one firearm of your choice that would've been legally available on the civilian market in the United States in 1969 (Smith & Wesson Model 10s and M1 Garands - yes, AK-47s and Mini-14s - no)
>you have 20 rounds of ammunition
>you can improvise additional weapons from household items
>you can set up barricades using furniture and other household items
>Sharon and the others will fight alongside you if they're appropriately armed, but they'll probably suck and get themselves killed in the process
>you have to kill every Manson Family member present, including Linda Kasabian
>whatever happens, Sharon and her unborn child must survive, if they don't, she won't be able to have gratitude sex with you and Roman Polanski will drug and rape Samantha Gailey in the future
>absolutely no flamethrowers (Molotov cocktails are acceptable though)