20 8 4Really easy, just upgrade bunker on level 5 and promote bomber one time. (Need 6 hours)Showing all 4 comments. Leave a comment. For some reason, this didn't pop for me when I promoted the bomber and got aviator II. Is the achievement wrong, and you need to promote it twice? or do you have to build it also? Maybe that is why neg votes are showing?Posted by Twigleaf Twigs On 04 Nov 15 at 08:52 You need to wait 6 hours for promote bomber. Just need to upgrade one time. And achievement pop ( i got it with this solution )Posted by ArmS II Archeur On 04 Nov 15 at 09:54 For me, it was a bit glitchy. Even after waiting for the 6 hours, and in the game, it showed I had completed the promotion..... it never popped. It was not hung on unlocking.... either. It finally just randomly popped a couple days later, so your description is correct. I think the game was just glitchy for me. +1 pos vote as the solution works, or is supposed to anyway.Posted by Twigleaf Twigs On 11 Nov 15 at 08:24 it needs rank 7 now in my gamePosted by raidenhardcore On 19 May 17 at 19:00 Leave a comment