Complex sentence: During the chase, McClane uses the truck's CB to contact Warlock who connects him to Bowman and gives the license plate number of Gabriel's hazmat van to him so he can use the vehicle's LoJack to pursue Gabriel.
Split into simpler sentences: During the chase, McClane uses the truck's CB to contact Warlock who connects him to Bowman. McClane gives the license plate number of Gabriel's hazmat van to Bowman so he can use the vehicle's LoJack to pursue Gabriel.