Complex sentence: Thule is armed with a standard-issue Chainsword and Bolt Pistol at the beginning of the campaign, and when fully upgraded carries a daemonhammer and meltagun, as well as wearing heavily ornate artificier armour, with a backpack-mounted teleporter.
Split into simpler sentences: Thule is armed with a standard-issue Chainsword and Bolt Pistol at the campaign's start. When fully upgraded, he carries a daemonhammer and a meltagun, as well as heavily ornate artificier armour with a backpack-mounted teleporter.