Not sure why, but once I got to the newer missions, the first mission I did in the depths I had to shoot a few times before being able to blow an explosive block up with the Agent Peacemaker (not on the timed blocks) Also side not, why is there no Frostifur armor, girlfriend was talking to me about it and I thought it would be interesting to make note of it because I do think adding new armor and items to the game will attract a lot more attention from players.
Just my humble opinion,
Nick
ps. i always get confused seeing the admin's name since we have the same name XD
uhhhh there is a frostifur armor... http://wiki.spiralknights.com/Skolver_Coat