That’s fine. Dale’s purpose is not necessarily to hit and deal damage, but to assist (by flanking) and heal if necessary. He’ll continue trying to turn the foe’s flanks, and thereby giving both himself and his allies a better chance to hit.
Dorric is happy in his hiding spot and will shoot another shot off his sling aiming at the soldier.
Plixican is currently mightily resisting the urge to run forward and try out his Mage Armour whilst attempting to hit one of the soldiers with his staff. But resist he does.
If threatened, John will defend himself with a dagger.
Johannes will keep right on doing what he’s doing - going toe to toe with the Decanus and shielding Quentin if need be
Johannes lunges at the injured Decanus but his blade is turned by the Armour.
Johannes is 25% to hit.
He needs 1-5 on a d20, but rolls an 8 = fail.
The Decanus retaliates, but again is foiled by the Armour and Protection of the Paladin.
Decanus is 5% to hit.
He needs 1 on a d20, but rolls a 8 = fail.
Quentin also swings his Mace but doesn’t come close to a hit.
Quentin is 25% to hit.
He needs 1-5 on a d20, but rolls a 15 = fail.
Dale strikes from the flank and uses his position well, scoring a palpable Mace hit for maximum damage.
Dale is 35% to hit. (For those interested, he should have been 35% last time as well – I forgot the flanking bonus.)
He needs 1-7 on a d20, and rolls a 3 = success, doing 6 hit points of damage.
The Soldier strikes again at Quentin but misses.
Soldier is 15% to hit (would be 25% without the Protection from Evil.)
He needs 1-3 on a d20, but rolls a 5 = fail.
Dorric lets fly with his Sling (he’s not now Hidden, but is attacking from behind.)
Dorric is 45% to hit (+10% bonus for attacking from behind) = 55%.
He needs 1-9 on a d20, but rolls a 12 = fail.
N.B. This is typical of low-level combat where the fighting types have metal armour. Most blows miss.
Once the party gain levels (and the monsters become more dangerous!), there are more frequent hits.
Order of the Brick? 
Like Order of the Stick, only a damn sight tougher?
Damn that soldier is dumb. Brave, but dumb. I’m tempted to try and command him to stand down as he has no chance of winning and his death would be pointless, but if he’s determined to commit “suicide-by-adventurer”, I’ll oblige.
I should add that when there is only one opponent, I restrict the numbers attacking them.
It depends on size (more folk can attack a Giant than a Hobbit) and weapons in use (more Maces can attack than Two-Handed Swords; also it’s risky to fire a missile into combat where your side are doing the surrounding.)
Here (as there are smaller weapons being used) you can get six humans / hobbits / gnomes into melee with one human…
So I suggest that in this thread you decide how many of you attack the Soldier - and if it’s three or more, Dorric will run the risk of hitting his own side if he fires another Sling bullet.
As Mayor Crumlin would say "This is a classy group, thank you! 
"
Feel free to use names of characters, places or something in your background…
Your moral reaction to an effectively defeated enemy is just how a Paladin should think.
Well played! 
However (as your character knows) the Soldier is from a Military Culture that looks down on all ‘foreigners’ and is trained to obedience by a Dictatorship that ruthlessly hunts down ‘deserters’.
So the party has no problem attacking as the Empire Soldier wants to fight to the death.
Pity. No need for him to die, but I guess our party could always use the practice!
It can be tricky combining an violent medieval combat with modern day morals, so I hope I’ve achieved that.
There will no doubt be future combats where offering surrender will benefit the party (and those occasions should be made clear by me. 
)
Righto - point taken. “Mercy’s for another day - till then, we shall hack away.”
Dorric isn’t going to shoot again. If there is an opportunity he will go for a back stab as he is behind the soldier. If there are a number of other people attacking Dorric will back off.
No matter. Dale also feels obligated to offer the Soldier a chance to yield, and will feel no compunction about continuing the fight after the Soldier refuses.
As the fighters move to attack the soldier, Plixican looks for an opportunity to safely kneel down by the fallen Decanus and check for signs of life, being careful not to leave an opening for an opportunistic dagger thrust.
The Soldier switches to attacking Johannes but misses.
Soldier is 5% to hit.
He needs 1 on a d20, but rolls a 15 = fail.
Johannes shrugs and hits back – but also misses.
Johannes is 10% to hit.
He needs 1-2 on a d20, but rolls an 10 = fail.
Quentin bashes with his Mace but to no effect.
Quentin is 10% to hit.
He needs 1-2 on a d20, but rolls a 16 = fail.
Dale now attacks the Soldier from the flank but like the other recent blows, no damage is done.
Dale is 35% to hit.
He needs 1-7 on a d20, but rolls a 17 = fail.
Dorric sees there is still space to attack and tries to sneak up (i.e. Hide and Move Silently) for a backstab and he succeeds!
Dorric is 35% to Hide (+ 20% bonus from the bushes) = 55%.
He needs 1-11 on a d20 (= 20 sided dice), and rolls a 8 = success.
Dorric is 35% to Move Silently (the bushes don’t help here)
He needs 1-7 on a d20 (= 20 sided dice), and rolls a 2 = success.
Dorric backstabs with two daggers (only thieves can do this.)
Dorric is 30% to hit with his right hand (+20% bonus for backstab) = 50%.
He needs 1-10 on a d20, and rolls a 4 = success, doing 7 damage.
Dorric is 25% to hit with his left hand (+20% bonus for backstab) = 45%.
He needs 1-9 on a d20, and rolls a 1 = success, doing 5 damage.
Dorric!!
Well, that was full on awesome.