Purely as a duo to drag a wildcard specialist up the table with the Fasid. He moves, pops smoke on a button while the specialist is moving along behind him for efficiency.
Long range fire support with HMG+LGL Al-badass with ML-bot. Otherwise, HRL+SMG Al-badass dragging a specialist around. [ edit: NVM, it's the REM that has the Duo skill, not the Al-badass. ]
Can the Al Fasid even link with a wildcard? Only the Shaytaniyah FTO seems to have the Duo skill. The special duo does seem kinda pointless, you generally don't want to move the missile bot much, so I'm wondering what the point is. Unless duo is getting some cool bonuses we don't know about yet. Otherwise HRL big Al paired with Leila makes a fantastic duo. Push forward with Al and put him in suppresive fire, have Leila protect against hackers and grab objectives.
Damn, there goes that plan. Al-badass with a specialist would have been a brutal midfielder (which is probably why the REM has Duo, not the Al-badass).