[ATUCIT_Fox]

Since you can't use "uselast" to switch back from smoke grenades to your main weapon, every script needs initializing: after you pick your weapon from the menu, you must press the appropriate KP_x key. After that, jusy use DEL and PGDN.

Also, when I used the notation:

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alias backto[weapon] "useweaponclass [weapon]; bind PGDN [weapon]gren; bind PGDN [weapon]smoke"
with weapon = { rifle, smg, ms, heavy }
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you had to enter this:

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alias backtorifle "useweaponclass rifle; bind PGDN riflegren; bind PGDN riflesmoke"
alias backtosmg "useweaponclass smg; bind PGDN smggrengren; bind PGDN smgsmoke"
alias backtomg "useweaponclass mg; bind PGDN mggren; bind PGDN mgsmoke"
alias backtoheavy "useweaponclass heavy; bind PGDN heavygren; bind PGDN heavysmoke"
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I'm sorry if it was confusing, but I didn't feel likt typing it all out for the four weapons...

Hope you get it to work now,
Fox