Early buy all, you will sell most later HR when needed
Mid usually buy in order
Situational
Late buy as needed more useful <---> less useful
Notes After getting ricochet, you want to farm a lot until you have most of your mid items bought. You have the option to rush Superior Duration and Escalating Exposure if you want to rush damage.
Ordre des Compétences Infernus

+
+
+
+
1
2
1
1
1
2
5
2
2
5
5
5

+
+
+
+
1
2
1
1
1
2
5
2
2
5
5
5

+
+
+
+
1
2
1
1
1
2
5
2
2
5
5
5

+
+
+
+
1
2
1
1
1
2
5
2
2
5
5
5
Description du Build
Ammo isn't a problem if you slide...
And going fast is always fun