Your army Compositions and tactics.

[LordCurlyton]

Like I said, its very effective. If they choose to attack the center they are just asking to be slaughtered as they have walked (ran probably) right into an encirclement. Attack either flank and the formation lets you maneuver to counter, since it is HIGHLY unlikely that an enemy force can break a flank in time (maul it maybe, but not break). Even the center pikes can be tactically redeployed for maximum effect. The only thing this army really fears would be a massive HA army, and even then there better be some sort of finishing cav/infantry to ensure a rout. MAYBE a bunch of elite Cats could break the center pikes, but the better damn well do that b/c they will get SLAUGHTERED if they don't.
EDIT: In case anyone cares, the grouping I got it most with was constituted thusly
Spears = Scortamareva, except for 2 Scutarii who always were placed behind the left/right forward pikes
Swords = Originally 3 Samnite Milites and 1 Golberi Cuoras, after camaigning and eventually wearing out the cav and milites it became all Golberi Cuoras (though the Milites lasted hella long)
Pikes = Mishtophoroi Pezheteraoi, who are worth every Mnai you spend on them
Cav = Lance Eporus (or however you spell Gallic light cav), + Gen

It was in my Romani campaign, and I know I got it a couple times as Qart Hadast, with Lucanian Spearmen and Libyans/more Scutarii replacing the Scortamarevas, and generally nice solid blocks of Samnites or Iberian Assaults. I still used the Mercenary Pikes, if only because I had the Carthage Elite Pikes in a different army.