ok i solved the board collector glitch. you do not have to start a new game. if you use the cheat to unlock boards. the game thinks you have unlocked them. in the game how you unlock them is by getting the shell that relate to the gate objective.

so if a level needs to to go through 10 gates, just replay that level with no cheats on and it will give you that board. just restart from the beginning of the game and replay the levels and notice how many gates you need to the shell objective. it wont take long and you will thank me for figuring it out!!

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"War is where the young and stupid are tricked by the old and bitter to kill each other." - Niko Bellic