SSair correctness improvments (#28057)

code/modules/atmospherics/environmental/LINDA_turf_tile.dm

@@ -129,9 +129,9 @@
 	if(direction == 0)
 		return
 
-	if(last_high_pressure_movement_time >= SSair.times_fired - 3)
+	if(last_high_pressure_movement_time >= SSair.milla_tick - 3)
 		return
-	last_high_pressure_movement_time = SSair.times_fired
+	last_high_pressure_movement_time = SSair.milla_tick
 
 	air_push(direction, (force - force_needed) / force_needed)
 
@@ -171,7 +171,7 @@
 #define INDEX_SOUTH	3
 #define INDEX_WEST	4
 
-/turf/proc/Initialize_Atmos(times_fired)
+/turf/proc/Initialize_Atmos(milla_tick)
 	// This is one of two places expected to call this otherwise-unsafe method.
 	var/list/connectivity = private_unsafe_recalculate_atmos_connectivity()
 	var/list/air = list(oxygen, carbon_dioxide, nitrogen, toxins, sleeping_agent, agent_b, temperature)

code/modules/atmospherics/gasmixtures/gas_mixture.dm

@@ -762,6 +762,7 @@ What are the archived variables for?
 #undef QUANTIZE
 
 /datum/gas_mixture/bound_to_turf
+	synchronized = FALSE
 	var/dirty = FALSE
 	var/lastread = 0
 	var/turf/bound_turf = null

code/modules/atmospherics/machinery/components/unary_devices/heat_exchanger.dm

@@ -32,11 +32,11 @@
 	if(!partner)
 		return 0
 
-	if(!SSair || SSair.times_fired <= update_cycle)
+	if(!SSair || SSair.milla_tick <= update_cycle)
 		return 0
 
-	update_cycle = SSair.times_fired
-	partner.update_cycle = SSair.times_fired
+	update_cycle = SSair.milla_tick
+	partner.update_cycle = SSair.milla_tick
 
 	var/air_heat_capacity = air_contents.heat_capacity()
 	var/other_air_heat_capacity = partner.air_contents.heat_capacity()