its possible to 1.0 / 1.2 / and 1.21 at the same time.
your cd key stays same in all 3 versions.
all what you have to do is to copy the game.
i ll tell you now the details, its a little bit tricky, but follow it step by step and u ll understand. =)
Look where u ve installed ur BFV.
You ll copy the game or 3 times so there ve to be space for it.
ca.(5GB) this should not be a problem =)
You play bfv 1.21, but to play bfv in all 3 versions, you have to deinstall the game for first. after this you need to download the 2 patches. Maybe the 1.21 patch is on ur computer, so u dont need to download..
i searched links for you:
Deinstall ur Game...
Install it again..
Go to the place where u installed ur bfv.
The file is named "Battlefield Vietnam".
This ll stay so.
Now you copy this file.
Name the "Copy of Battlefield Vietnam" in "Bfv 1.0" .
This ll be later your 1.O version.
Now install the 1.2 Patch.
Just the original file ll be patched.
The copy stays 1.0
After you have patched, copy your original "Battlefield Vietnam" file
Now u got 3 Files.
The original file: "Battlefield vietnam" , the Copy of it, and your "Bfv 1.0"
Name the Copy in: "Bfv 1.2"
Now install the 1.21 Patch.
Again just the original version ll be patched.
After patching, name your "Battlefield Vietnam" in "Bfv1.21"
So its complete. =)
You should delete all Bfv Icons or links on your desktop.
They should doesent run.
You can start Bfv just with your EXE. Files.
Choose one of ur 3 versions, and start the bfv.exe for gaming.
If u need help with Xfire Settings
,for playing Bfv in different versions, write a message.
i will tell u.
i hope this ll help you.
wish you much fun.
Greets / Radicals