NB! It seems this console command is not compatible with CS2.
Command Profile

MP_GGTR_LAST_WEAPON_KILL_ENDS_HALF

CS:GO

This command sets whether or not the half should be ended when a player gets a kill with the final weapon in Arms Race mode.

Syntax
mp_ggtr_last_weapon_kill_ends_half [0 / 1]

Description

This command sets whether or not the half should be ended when a player gets a kill with the final weapon in Arms Race mode.

How To Use mp_ggtr_last_weapon_kill_ends_half

  1. Enable the developer console in Counter-Strike settings.
  2. Open the console with the tilde key (~).
  3. Enter mp_ggtr_last_weapon_kill_ends_half [0 / 1], replacing bracketed arguments with the value you want, then press Enter.

This legacy command is not currently listed as compatible with Counter-Strike 2.

Syntax And Arguments

mp_ggtr_last_weapon_kill_ends_half [0 / 1]
0 / 1 Enter 0 to disable this feature (default). Enter 1 to end the current half when a player gets a kill with the final weapon in Arms Race.