[6] Al-Saedni, who was the leader of the group and also of Jahafil Al-Tawhid Wal-Jihad fi Filastin, was killed in an Israeli airstrike in Gaza on 14 October 2012.

In addition to the rocket launches, MSC declared itself responsible for a Gaza-Israel cross-border IED attack on June 18, 2012 that targeted an Israeli construction site, killing one civilian.

In addition to these physical attacks, the MSC released a statement in February 2014 declaring support for the Islamic State of Iraq and the Levant.One of these sub-groups is Jahafil Al-Tawhid Wal-Jihad fi Filastin[4] (or al-Tawhid wal-Jihad, "Unity and Jihad") which had been formed on 6 November 2008 and is also linked to Al Qaeda.

Israeli civilian Saeed Fashafshe, a 35-year-old Arab resident of Haifa and a married father of four, was killed, as were at least two of the terrorists.

It further stated that it is waging jihad "to become a building block in the global project aiming for the return of the rightly-guided Caliphate and the institution of the pure Shariah".

[3][16][17] In a later video statement released in July, the group characterized the attack as "a gift to our brothers in Qaedat al-Jihad and Sheikh Zawahiri" and retaliation for the death of Osama bin Laden.

It emphasized the following points in explaining the rationale for the attack: On 7 October 2012, the Israel Defense Forces (IDF) and the Israel Security Agency carried out an air strike in the southern Gaza Strip targeting Tala'at Halil Muhammad Jarbi, who the IDF said was involved in the planning and execution of the June 18 attack and other terrorist activities in the Gaza Strip.

[7] Around 7:15 am on 21 March 2013, on the second day of a visit by US President Barack Obama to Israel, the group fired four rockets from Beit Hanoun at Sderot, triggering alarms in local communities and forcing residents on their way to work or school to run to bomb shelters.