It's available after clearing We Must Stop Meeting Like This, but not required to advance in the Campaign.
Waana sax in gocasho ay timaaddo, balse waxaase loo baahan yahay in gocashadaas laga gudbo oo laga shaqeeyo si aanay jiilka soo socda ug dhicin wixii shalay nagu dhacay oo kale.