The simsmoke_weapons.pbo file you have requested: Addons / Weapons / SimonPro's Smoke Weapons - 6.51kb is not available. Perhaps try browsing all files for the game Operation Flashpoint and upload any files you want to share or are missing. This is the only information we could locate:
This addon includes three "new" weapons and three units to use them. The weapons are smoke-shell-launching versions of the M16, AK47 and AK74. Each weapon will launch a grey, a red, and a green smoke-shell.The weapons work perfectly and there are no obvious bugs. The presentation is slightly off because the author has tried to squeeze the word "SIMSmokeGrenadeLauncher" in as the weapon name which clogs up the window at the top left and gives the impression that it has been crammed in.The author has included a massive readme describing the addon and its history but has neglected or forgotten to include installation instructions.Other than those two faults the addon works perfectly but it is hard to see a use for it other than in very specific circumstances, so unless you need it specifically for a mission do not bother with it.