ok i'm trying to decide if i should use the arsenal or pyrotech trees on a pvp mercenary. i've been trying to read up on people's opinions, but it has only managed to confuse me more. can someone please explain to me the difference in play style between the two? what is the basic strategy involved? as far as i can tell, with an arsenal you want to stack tracer missiles and with pyrotech you want to set your enemy on fire using certain moves because you do more damage with the guy is on fire? please try not to use TOO much appreviations without explaining what they are, because i may or maynot understand what you mean.