Complex sentence: Their armour can also render them near invisible, with only a small area of blue discoloration giving them away, they use this ability to lie in wait and ambush the enemy, most often the game's protagonist, Kyle Katarn.
Split into simpler sentences: Their armour can also render them near invisible, with only a small area of blue discoloration giving them away. They use this ability to lie in wait and ambush the enemy, most often the game's protagonist, Kyle Katarn.