If i change these from their original value to this does it mean that enemies will only get upgrades and increase alert level of other territories every 9999 days?

[LW_Overhaul.X2LWActivityCooldown_UFO]
; How many DAYS between UFOs that level-up aliens worldwide.
+FORCE_UFO_COOLDOWN_DAYS[0]=9999
+FORCE_UFO_COOLDOWN_DAYS[1]=9999
+FORCE_UFO_COOLDOWN_DAYS[2]=9999
+FORCE_UFO_COOLDOWN_DAYS[3]=9999

; How many DAYS between UFOs that increase alert levels in a series of adjacent territories. Pretty big difficulty lever here, although more troops leads to more opportunities for resources.
+ALERT_UFO_COOLDOWN_DAYS[0]=9999
+ALERT_UFO_COOLDOWN_DAYS[1]=9999
+ALERT_UFO_COOLDOWN_DAYS[2]=9999
+ALERT_UFO_COOLDOWN_DAYS[3]=9999