Is it possible to install Worms Armageddon from my disc to my flash drive so I can play it on another laptop or a friend's PC?
Hm, I think not, you will need the CD to load some other files.
In another case, if you runs a .iso from your flash drive it will work.
There's a method also, that if you copy some folders and files from the folder called DATA from your CD which is missing in the DATA of your installed W:A it will not ask for CD, but I don't remember if it's just only copy or you need a foribidden module.