I noticed that if there is a 'W German Special Forces, '80: Heavy Grenadier' unit in the game (added in the mission editor, or spawned through Zeus), the log file will be spammed with an error multiple times per second:

'Duplicate magazine gm_8Rnd_9x19mm_B_DM11_p1_blk detected (id 2:10000747) in slots manual and manual'

Makes for HUGE log files after an hour of playing

Saw the same with the winter version heavy gunner as well.