Module (MOD) System
After passing the main storyline of Normal 5-1, you can unlock the module system.
Module types are divided into attack/defense/bio/shield, which can provide attack/defense/HP/shield bonuses for the corresponding characters in battle.
Modules with the same camp attributes as the character can provide an additional 20% bonus to the attributes.
Modules that are enhanced to level 5, 10, or 15 provide a secondary attribute entry. The recommended secondary attribute is stagger damage, followed by stagger rate, and then restraint. The secondary attributes of the module can greatly enhance the combat power of the squad.
To enhance a module, navigate to the module you want to enhance under Storage -> Module and go to the ‘Enhance’ Panel.

Modules can regenerate random sub attributes by consuming Merkle Units through Revise. After you have enhanced this module to Lv. 15, you can see the ‘Revise’ panel is unlocked. By spending Crystalas and Merkle Units, you can have one chance of generating a new set of attributes. You can choose to keep its original attributes or decide to use the new set instead (old ones will disappear).


Acquisition and training
Blue and white modules can be obtained in large quantities in the main line and in cooperative attacks, while purple modules can be purchased in the event store and have a low probability of being obtained in cooperative attacks. A gold module can be purchased in the event store in each round of events, in the club logistics store for every 4000 club coins. Accumulating gold modules in the event costs the least.
Merkle modules can be obtained in Daily Missions, Cooperated Attacks and Weekly Data Exercise Rewards.
It is recommended that only purple and gold modules be enhanced, and that purple modules be properly adjusted to survive the newbie period. The recommended secondary attribute is Crit Damage, followed by Crit and Resistance.
Should i prioritize getting a full set of t4 of the same attribute or should i try to get something like the attack type for each attribute?
Try to get three sets of t4 modules, regardless of attribute. Later you can expand to a full collection of all attributes.