Merge pull request #10451 from kevinz000/mobility_flags

Mobility flags + combat rework stuff refactoring, fixes a few edge cases including the Oh Dreaded Xenomorph Hardstuns, etc etc time to break the game

code/modules/projectiles/guns/ballistic/revolver.dm

@@ -363,4 +363,4 @@
 		user.visible_message("<span class='warning'>[user] somehow manages to shoot [user.p_them()]self in the face!</span>", "<span class='userdanger'>You somehow shoot yourself in the face! How the hell?!</span>")
 		user.emote("scream")
 		user.drop_all_held_items()
-		user.Knockdown(80)
+		user.DefaultCombatKnockdown(80)

code/modules/projectiles/guns/energy/dueling.dm

@@ -334,7 +334,7 @@
 			L.death()				//Die, powergamers.
 		if(DUEL_HUGBOX_NONLETHAL)
 			L.adjustStaminaLoss(200, forced = TRUE)		//Die, powergamers x 2
-			L.Knockdown(100, override_hardstun = 100)	//For good measure.
+			L.Paralyze(100)	//For good measure.
 
 //Storage case.
 /obj/item/storage/lockbox/dueling