Warhawk Riders are monstrous cavalry, so can fight 2 of them against the war machine. When charging, both rider and mount have same profile, so I'll roll them together.
2 Warhawk Riders, 4+ to hit:
Str4 so 4+ to wound1d6 >= 4
1: 3 ... failure
2: 5 ... success
3: 3 ... failure
4: 4 ... success
sum: 15, average: 3.75, success: 2/4 50%
One Str4 wound on the Organ Gun.1d6 >= 4
1: 1 ... failure
2: 4 ... success
sum: 5, average: 2.50, success: 1/2 50%
Dryads, 10 of them enter the house.
10 Dryads, 20 WS4 attacks:
9 Str4 hits, 4+ to wound:1d6 >= 4
1: 4 ... success
2: 1 ... failure
3: 3 ... failure
4: 3 ... failure
5: 3 ... failure
6: 2 ... failure
7: 5 ... success
8: 1 ... failure
9: 6 ... success
10: 3 ... failure
11: 6 ... success
12: 6 ... success
13: 3 ... failure
14: 2 ... failure
15: 3 ... failure
16: 5 ... success
17: 6 ... success
18: 1 ... failure
19: 4 ... success
20: 6 ... success
sum: 73, average: 3.65, success: 9/20 45%
Damn, only 3 Str4 wounds :/1d6 >= 4
1: 6 ... success
2: 2 ... failure
3: 3 ... failure
4: 1 ... failure
5: 6 ... success
6: 3 ... failure
7: 1 ... failure
8: 1 ... failure
9: 6 ... success
sum: 29, average: 3.22, success: 3/9 33%
Hit me back and roll Ld if needed.