Ghillie suit

[kcdusk]

So, single player has decided to work their way through enemy lines to take a shot at a high ranking NPC.

Along the way i have 4 or 5 different "tasks" or "challenges" the player will need to over come to reach the point where a shot may be taken from.

The player has gained a Ghillie suit. He's only thinking of the advantages, i'm thinking its heavy and hot wearing it all the time.

What advantage would you give a player with a ghillie suit?

How would you ref any disadvantages?