What happened between MGS5 and MGS1 with kaz and big boss?
They're were best buddies on the rig but suddenly big boss had a new base in africa and kaz was helping solid snake infiltrate it.
>>384553287
Kaz disliked the plan with Venom and never got over Venom sparing Quiet.
>>384553287
Big Boss in MGS1 is the real Big Boss, who kinda betrayed Kaz and Venom Snake (Big BOss in MGS5). So Kaz swore to make Solid into a better soldier and help him take down BB.