Can someone help me understand what happened here.

Hello boys and girls of all ages.
I was hoping someone could help me understand the sequence of events that go on to explain what happens as me and the opposing player are both perplexed. I'll lay out the 2 outposts, the subs, and the specialists involved.
Opposing Player (O/P) has the following:
Outpost: Factory
Driller Count: 77
Specialists: 2x Assassin, 1x Engineer, 1x Infiltrator, 1x General, 1x Pirate, 2 Saboteur
Shields: 20
I have the following:
Outpost: Factory
Driller Count: 2
Specialists: 1x Queen, 1x Minister of Energy, 1x Foreman, 1x Double Agent, 1x Security Chief
Shields: 50
O/P sends a force of 47 containing a General, an Infiltrator, and a Saboteur
I send a force of 0 with a Double Agent.
The game is telling me that they collide. Both subs are reduced to 0. Then they both carry on with their original paths. Therefore his 0 sub with 3 specialists thud against my shield of 50. Taking my Driller count of 2 away. I then capture the O/P specialists.
My Double Agent continues on his course to the O/P outpost. He hits the outpost but my Double Agent just disappears. He isn't captured. He doesn't join the O/P. He just disappears.
The combat preview states the following:
Myself
0 Drillers
Double Agent
O/P
47 Drillers
General
Infiltrator
Saboteur
O/P Saboteur damages my Sub
My Double Agent defects and ends the combat.
Power (For both sides):
0
= 0 Total
My question is what happens for the Double Agent to no longer defect, my sub to not return from the Saboteur, and me not gain the O/P's specialists but, instead, capture them?
Thank you for your help.
I was hoping someone could help me understand the sequence of events that go on to explain what happens as me and the opposing player are both perplexed. I'll lay out the 2 outposts, the subs, and the specialists involved.
Opposing Player (O/P) has the following:
Outpost: Factory
Driller Count: 77
Specialists: 2x Assassin, 1x Engineer, 1x Infiltrator, 1x General, 1x Pirate, 2 Saboteur
Shields: 20
I have the following:
Outpost: Factory
Driller Count: 2
Specialists: 1x Queen, 1x Minister of Energy, 1x Foreman, 1x Double Agent, 1x Security Chief
Shields: 50
O/P sends a force of 47 containing a General, an Infiltrator, and a Saboteur
I send a force of 0 with a Double Agent.
The game is telling me that they collide. Both subs are reduced to 0. Then they both carry on with their original paths. Therefore his 0 sub with 3 specialists thud against my shield of 50. Taking my Driller count of 2 away. I then capture the O/P specialists.
My Double Agent continues on his course to the O/P outpost. He hits the outpost but my Double Agent just disappears. He isn't captured. He doesn't join the O/P. He just disappears.
The combat preview states the following:
Myself
0 Drillers
Double Agent
O/P
47 Drillers
General
Infiltrator
Saboteur
O/P Saboteur damages my Sub
My Double Agent defects and ends the combat.
Power (For both sides):
0
= 0 Total
My question is what happens for the Double Agent to no longer defect, my sub to not return from the Saboteur, and me not gain the O/P's specialists but, instead, capture them?
Thank you for your help.