Sten Progression 2 (wording wrong or objectives wrong)

Same behavior for me. I've noticed the misleading/mixed up texts in round 1, where I haven't completed the assignment. In the next round, the counter for text "Kill 12 enemies" started back on 0, while the "Kill 30 enemies in 1 round" continued at the count of the previous round. In this specific round, I killed the 12 enemies  with the Sten (but not more than 30 in overall) and the assignment was completed.