They don't make sense. The impacts higher sitting at 20 vs. light weight at 15. The fire rate is the same. However, u get no mobility bonus, but the ttk is 0.8 at 12 crits 1 body vs. light weights at 11 crits 1 body. If anything, this should be swapped since light weights have a mobility and straffing bonus. Adaptive have been out of the metta since sunsetting was introduced. Not saying they need a mega buff but come on bungie. Swap the ttks of adaptives and light weights and keep the balance by light weights having the mobility buff.