thegrube posted on Aug 20, 2016 2:08:35 PM - Report post
Breaking down Barriers What do I need to break down the piles of stones barriers? Without that I can't get to virtually all the remaining upgrades.
TIER 7
BlackDragon55 posted on Aug 20, 2016 4:38:13 PM - Report post
I had the same problem, I ended up restarting the game from the beginning and following the objectives. You need to complete each objective to earn the upgrades you need to continue your quest. I do not remember which map I was in to earn the "Torpedo Upgrade" but if you follow the objectives you will come across the upgrade. You need the torpedo's to break thru the stone barriers.
Hope this helped
I am currently working on getting the "Sonar Upgrade". There are some fairly tough puzzles to solve.