Ok everyone... I have some news to report. Hopefully this is good news to you all. I contacted angry mob immediately after the thanksgiving weekend, and complained about two things:
1) the marksman achievement not unlocking for me.
2) most importantly, the side missions remaining locked even after I paid $2 for them to unlock.
I never heard back from them. This morning, I emailed them again and said that they need to reply to my previous message or I will request a refund from iTunes, give them a poor customer review, and lodge a formal complaint with iTunes regarding the sale of defective products in conjunction with a lack of response to customer concerns. About 10 minutes later, I received this reply:
Quote
Dear (name left out for privacy)
I'm sorry those 2 bugs upset you that much.
We are now finishing a new game update, and we'll most probably submit it
tomorrow. It fixes the unlocking side missions bug.
About the marksman achievement, you need to kill 10 guys with a plasma
cannon, in the same level. Did you try that? We checked and it works on our
side.
All the best,
(Name left out for privacy)
Angry Mob Games
So, it looks like we will get an update to fix the bug which keeps the side missions locked even after purchase, but the bad news is it looks like everyone will have to pay for the side missions to have access to them again.
PS. In regards to the marksman achievement, I have played several different missions, killing every enemy with only the plasma cannon, and I have even tried using different cannons. In some cases, I earned over 30 kills in the same mission using JUST the shoulder cannons, and I still have not unlocked this achievement. I'm hoping their update will fix that too, because it's clearly broken on my end. Nonetheless, I can live without one measly achievement. I'll be happy with just getting the side missions really...