One shot one kill
Ranks Achieved:

Silver I ✔
Silver II ✔
Silver III ✔
Silver IV ✔
Silver Elite ✔
Silver Elite Master ✔
Gold Nova I ✔
Gold Nova II ✔
Gold Nova III ✔
Gold Nova Master ✔
Master Guardian I ✔
Master Guardian II ✔
Master Guardian Elite ✔
Distinguished Master Guardian ✔
Legendary Eagle ✔
Legendary Eagle Master ✔
Supreme Master First Class ✔
The Global Elite ✔(current)