Kvm 59 and 89 need tips

any tips to find this weapon (both 5 star) im having a hard time doing so

Kvm59

Potential drop from:

  • Apocalypse Tanks and Harvesters
  • Spetsnaz Firebirds

Kvm89

Potential drop from:

  • Apocalypse Tanks and Harvesters
  • Spetsnaz Firebirds

Either do the daily assignments to tank badge completion and see if you receive a 5c version of either, or go to Himjfall Island where much gold and pain can be had.