View on Official Skill Tree Calculator Starting Skill Scorpio Turret Gain the ability to deploy a Scorpio Turret that automatically fires at enemies. Also has a shield that can be used as cover. Turret has a few seconds before it disappears. [20 seconds.] Cooldown: 100 seconds.					Roland Purge
Tier	Infantry Tree		Support Tree		Medic Tree
1	5/5	0	5/5	0	5/5	0
2	5/5	5/5	5/5	0	5/5	0
3	0	0	0	0	0	5/5
4	0		0		5/5
Totals	15		10		20
	Required Level: 50

Equipment

Guns:
S&S Crux and/or Vladof Hammer - All Purpose Killing Machine
Maliwan Crux - Good Against Armor
X3-X4 Shock Shotgun - Shielded Enemies
Torgue Friendly Fire - Takes down flesh fast
Maliwan Volcano - Ranged Attacks
Tediore Defender - Ammo Regen until you find a Commando Mod w/ Regen

Items:
Muscleman/Macho Shield (1200+ Capacity, 40-60% Health Boost) - Keeps you alive longer
Transfusion Grenades - For dire situations (You should also carry your favorite grenades, mine are Explosive MIRV)
Commando Mod w/ Shotgun Ammo Regen - Increases your RoF & Keeps your Ammo Stock Up

Strategy

This is my current Roland build and it suits a style of play which focuses on up close and personal shotgun kills. It's advantages are the fact that your damage with shotguns is completely insane, you can wipe out an encampment of guys in no time and with a nice explosive crux your magazine size will end up being about 24-28. You're also completely self sufficient with this build minus the fact that you're susceptible to ranged attacks. Even so, with a decent sniper rifle you can take care of them as well. The disadvantages with this build are the fact that you're pretty susceptible to long range attacks, you don't increase the magazine size, regen ammo or help your teammates in any way at all. In essence, this build is suited for a co-op player who doesn't feel the need to help everyone and wants to be in the fray.

When playing against Crimson Lance use the Maliwan Crux. It'll take them down very quickly, however be careful because they are quite dangerous.
When playing against any other enemy use the S&S Crux/Vladof Hammer when possible. The Crux has a very large magazine to begin with and with a good Commando Mod allows you to blast through enemies like nothing.
When confronted with ranged attacks which would kill you before you got within range use the Volcano or a Sniper Rifle of your choice to take the enemy down. If you're playing w/ other players you won't have to worry about this as much.
You may as well leave an Explosive Artifact on your Sentry since you won't be using it much anyway. (If using the variation below w/ a Sentry use whatever works best vs. the enemies you're fighting.)
If you're fighting for your life (down) use the S&S Crux if you can, it'll take the nearest small enemy down quick.