PLA chain of command:
班 bān (squad) <
排 pái (platoon) <
连 lián (company) <
营 yíng (battalion) <
团 tuán (regiment) <
师 shī (division). The
部 'department, headquarters' suffix attaches to indicate the command element:
连部 'company HQ',
营部 'battalion HQ',
团部 'regiment HQ'. Nearly always seen in war films and military fiction.