Frozen Elite glitch

On the level the truth and reconcilation

Go through the level like normally until you get into the ship.Go through the first and second battle rooms,now you should be going to the dropship bay before leaving to go there kill all of your marines go through until you reach 2 jackals kill them then you will see 1 elite and some grunts kill the grunts not the elite then right before you round the corner past the battle throw a plasme grenade way past the elite then round the corner and trigger the checkpoint he should be frozen you can throw plasma genades on him and they won't blow,even hit him with needeler rounds and they will stick to him,once you round the corner a second time he will explode so have fun :-)