Macbeth is described as brave and fearless in battle:
For brave Macbeth—well he deserves that name—Disdaining fortune, with his brandished steel,Which smoked with bloody execution,Like valor’s minion carved out his passageTill he faced the slave (I.2.16-20)
Which ne'er shook hands, nor bade farewell to him,Till he unseamed him from the nave to th' chops,And fixed his head upon our battlements. (I.2.21-23)
Till that Bellona’s bridegroom, lapped in proof,
Confronted him with self-comparisons,
Point against point, rebellious arm 'gainst arm,
Curbing his lavish spirit; and to conclude,
The victory fell on us. (I.2.54-58).
He also described as the new Thane of Cawdor, though Macbeth himself doesn't know it yet:
No more that thane of Cawdor shall deceiveOur bosom interest: go pronounce his present death,And with his former title greet Macbeth.