Some antag fixes. (#35690)

* Removes misleading comment

* Fixes devil ascension visible in lobby

* Fixes nuke op reinforcements.

* ADVANCED COPYPASTE

* Missed this one.

code/modules/events/holiday/xmas.dm

@@ -75,7 +75,7 @@
 /datum/round_event/santa/start()
 	var/list/candidates = pollGhostCandidates("Santa is coming to town! Do you want to be Santa?", poll_time=150)
 	if(LAZYLEN(candidates))
-		var/client/C = pick(candidates)
+		var/mob/dead/observer/C = pick(candidates)
 		santa = new /mob/living/carbon/human(pick(GLOB.blobstart))
 		santa.key = C.key
 

code/modules/events/wizard/imposter.dm

@@ -13,7 +13,7 @@
 		var/list/candidates = pollGhostCandidates("Would you like to be an imposter wizard?", ROLE_WIZARD)
 		if(!candidates)
 			return //Sad Trombone
-		var/client/C = pick(candidates)
+		var/mob/dead/observer/C = pick(candidates)
 
 		new /obj/effect/particle_effect/smoke(W.loc)