The battle draws near and tension grips the air. A plume of dust, the grinding of heavy metal chains, the first tank, more dust. Then another tank grinds past and then abruptly halts. As the dust settles, a long black arm swings past with sharp instructions being relayed on a walkie-talkie. A camera bobs into view. This is probably the first time in the world a gyrastabilised opertee arm has been mounted on a tank.