Abilities:
1: Cross-Cut (I swapped with Burstslash because generally your level 1 ability does damage and starts a combo)
2: Swap
2: Reload
4: Burstslash
6:
8: Soldier's Cry
10: Rush (I lowered its level so you're actively comboing while leveling)
12: Sword Jettison
15: (Quested from class guild) (you could swap in any ability here, usually utility attacks like knockbacks, jumpbacks, ranged attacks etc.)
18: Flank Shot
22: Augmented Shots
26: Slice and Dice
30: (Quested from class guild) (you could swap in any ability here, usually a defining ability. Examples: MRD's Butcher's Block, CNJ's Cure II, ACN's Summon II etc)
34: Lethargic Strikes
38: Battle Shout
42: Launch
46: Flip Blast (Think about lowering the level and including a 2nd combo string)
50: Stagger Breaker
Traits:
8: Spashfire (I suggest increasing the range to at least 1)
14: Active Parry (I'd suggest a base stat)
16: Large Mag
20: Improved Determination (I'd suggest a base stat)
24: Improved Parry (I'd suggest a base stat)
28: Improved Jettison
32:
36:
40: Vigor
44: Major Determination (I'd suggest a base stat)
48: