Help on Helldivers.

[Darkwatch]

Hello am new to cheat engine and although i do know how to use the basics (Look for a value, change value in game and look again to lead to address) but there are stuff i just figure out on Helldivers game. First off when search for research points it doesn't lead me to a address. i can't seem to find the exp either. i would like to know how to find these values and change them. Also i noticed that when i search the value for research samples during a mission and change it the address doesn't work anymore after the mission.