The force that deployed the weapon are the terrorists who attacked from the crowd of civilians. That's a war crime.
The terrorists are those who would deploy a two ton bomb in a built up civilian area targetting civilians and pretending they are targetting a millitant. Our opinions are just smoke in the wind, look at the UN report:
"Israel´s atrocities against the besieged Gaza Strip which lasted 22 days - from 27 December last year until 17 January this year - resulted in up to
1,400 Palestinians killed (up to 74% civilians including some 200 children) whilst 13 Israelis died (3 of whom were civilians). Crucially the Goldstone findings concluded that Israel´s onslaught on Gaza was not an operation of self-defence in response to rocket attacks but was "directed at the people of Gaza as a whole, in furtherance of an overall and continuing policy aimed at punishing the Gaza population."