@Abualiexpress summarized what is known about the Fakhrizadeh operation from Iranian sources. Here are his main points: The assault team numbered 12 people, who displayed skills equivalent to those of special forces.
They likely received training outside of Iran. Another 50 people provided logistical support. The assault team used a Hyundai Santa Fe jeep, a Nissan pickup truck, and 4 motorcycles. They knew that he would travel to a villa he owned on Friday at the appointed time.
30 min before his motorcade arrived, the attackers cut the power to the area of the operation. Fakhrizadeh’s motorcade was composed of 3 vehicles, which were bulletproof: security cars traveled in the first and last positions, with Fakhrizadeh’s car sandwiched in the middle.
The attackers waited for the first security car to pass and then opened fire on the car carrying Fakhrizadeh. They used the Nissan pick-up as a car bomb to disable the second security vehicle (the third one in the motorcade).
Immediately after detonating the explosion, all 12 members of the assault squad opened fire on Fakhrizadeh’s car and the first security car. The commander of the squad went to Fakhrizadeh’s vehicle, pulled him out, shot him point-blank and verified that he was dead.
The squad then left the scene. None of the squad members were injured or apprehended. The organizers of the attack hacked the intelligence network of the Revolutionary Guards, which was responsible for Fakhrizadeh’s security.
The attackers thus had perfect knowledge of Fakhrizadeh’s every movement. The embarrassment to the network is huge. It will be overhauled.
