With the abilities some mercs have, which on a lot of maps favor the defensive side massively such as the air strike and the orbital laser. I think a smoke grenade could add something new and more strategic to the game, especially for the attacking side. Say on Chapel or Terminal, i think they could be pretty important to an attacking strategy. It could be added to an engineer or something. Obviously it would have a 1min, or even a 2 min downtime like on all of the other abilities and only last for something like 7.5 to 10 seconds? The only issue i think it might cause is a drop in some peoples FPS.
What do you guys think?