I think by "weaponry focused", Visser was saying that Crocker's testimony focused on Iranian weapons/military aid to factions in Iraq as its primary means of influence. Visser says this focus on military aid alone is incorrect - Crocker should focus as well on Iran's myriad and longstanding political ties to varying Iraqi factions, which are at least as important and probably far more so than whatever EFPs the Quds Force doles out to the "special groups".

I think Visser is on the mark here. I winced when Crocker mentioned the "Lebanonization" of Iraq - in the past American representatives in Baghdad have indicated they believe Iran is pushing the "special groups" to eventually become a Hizbullah-like proxy in Iraq. What this ignores is that the "special groups", even in the American description, are little more than independent contractors, mercenary gangs, and criminals masquerading as Shia resistance fighters. The "special groups" to the extent that they exist are not a coherent grouping, have no political aims, and exist mainly to set off IEDs. The real Iraqi version of Hizbullah already exists in the ISCI, and it is more firmly ensconced in political power than Lebanese Hizbullah could ever dream, backed by the power of both Iran and the U.S.