This is my improved version of "Catapult Troops" from what u guys said.

Pushed By: 5 barbarians
Preferred Target: Walls and Town Hall
Housing Space: 6
Training Time: 5 min
Movement Speed: 2
Attack Speed: 0.5s
Barrack Level Required: 6
Attack Type: Area Splash (4 tile radius)
Range: 6 tiles

Level 1
Damage: 15
Damage vs Walls: 490
Damage vs Town Hall: 150
Hitpoints: 27
Training Cost: 1,500

Level 2
Damage: 19
Damage vs Walls: 660
Damage vs Town Hall: 312
Hitpoints: 31
Training Cost: 2,000
Research Cost: 200,000
Laboratory Level Required: 2
Research Time: 1 day

Level 3
Damage: 35
Damage vs Walls: 985
Damage vs Town Hall: 440
Hitpoints: 34
Training Cost: 2,500
Research Cost: 375,000
Laboratory Level: 4
Research Time: 2 days

Level 4
Damage: 37
Damage vs Walls: 1,325
Damage vs Town Hall: 635
Hitpoints: 38
Training Cost: 3,000
Research Cost: 8,000
Laboratory Level: 5
Research Time: 3 days

Level 5
Damage: 42
Damage vs Walls: 1,925
Damage vs Town Hall: 725
Training Cost: 3,500
Research Cost: 8,500
Laboratory Level: 7
Research Time: 5 days

Level 6
Damage: 46
Damage vs Walls: 2,345
Damage vs Town Hall: 930
Training Cost: 4,500
Research Cost: 9,500
Laboratory Level: 8
Research Time: 7 days