The soldier killed by a roadside bomb in Iraq on Monday has been named by the Ministry of Defence.
The Black Watch says it is determined to complete its mission
Pte Pita Tukatukawaqa, 27, of the 1st Battalion The Black Watch died when his Warrior armoured vehicle was hit near Camp Dogwood, south-west of Baghdad.
The Black Watch battle group was developing its tactics to counter such attacks, it said in a statement.
Pte Tukatukawaqa, who was married and from Fiji, was the fourth UK soldier to die in attacks over the past five days.
The statement said Pte Tukatukawaqa, who joined the Black Watch in March 2001, was a "trained sniper and an outstanding sportsman" who had served in Kosovo and Iraq.
He would be "dearly missed by his regiment and his friends", it said.
The Black Watch battle group has been urgently reviewing tactics after Pte Tukatukawaqa's death in the third attack on Camp Dogwood troops in five days.
The scale of the casualties and the attacks' "intensity and sophistication" have led to "searching questions", the BBC's David Loyn earlier said, from the camp.
He said the practice of troops going into villages in soft berets to gather information was being re-evaluated.
But Black Watch spokesman Capt Stuart Macauley said the troops were "more determined".
Lance Corporal Danny Buist, 29, from Arbroath, said: "We don't want to go anywhere. If we pulled out now, we'd feel like we've failed.
"It's a hindrance when people at home call for us to be pulled out. We know they're only trying to help, but it's not helping us at all.
"We're here, we're staying, so please give us the support to carry on and get the job done."
Warrior commander Lance Corporal Lee Walker, 22, from Perth, added: "Obviously there's a little bit of fear there when you go out now after what's happened, it's fear of the unknown.
"But nobody wants to leave a job half done and that's the same for all the lads out here. We want to complete the mission."
"While we mourn a lost colleague, the whole battle group has just been made more determined by this to complete our important mission," he said.
In Monday's incident, a Warrior armoured vehicle was hit by a roadside bomb just after dark, killing Pte Tukatukawaqa instantly and injuring two others.
David Loyn said the blast was powerful enough to blow the vehicle off the road, taking the wheels off one side.
He said flares immediately lit up the night sky around Camp Dogwood as the Black Watch battle group took up defensive positions to prevent any follow-up attacks by mortars or rockets.
It followed two suicide car bomb attacks - one on Sunday, in which two bomb disposal experts were injured, and one last Thursday in which three soldiers died.
Our correspondent said the Black Watch was under almost daily attacks and "now know that they are facing a much more sophisticated enemy than when they first came up here".
A Downing Street spokesman said on Monday night: "Our thoughts are with the Black Watch
battle group and their families after this incident.
"As the prime minister said this afternoon, we salute their dedication, professionalism and sheer courage."
Scottish National Party leader Alex Salmond said: "I have nothing but admiration for the bravery and conduct of our Scottish soldiers, and nothing but contempt for the politicians who placed them in this deployment in the full knowledge of what would happen."
Earlier on Monday two soldiers from the Royal Logistics Corps and the Royal Signals, who had been deployed at the camp, were treated in Germany for serious leg injuries sustained in Sunday's suicide bomb attack.
The camp has come under repeated attack since troops arrived
They were said to be in a stable condition after being flown from Iraq.
They had been serving with the Black Watch group in a bomb disposal unit when their vehicle was rammed by a bomber.
The Black Watch battle group includes an armoured reconnaissance from B Squadron, Queen's Dragoon Guards, elements of 40 Commando Royal Marines, and supporting specialists from the Royal Engineers, Royal Logistic Corps, Royal Electrical & Mechanical Engineers, and Royal Military Police.
It was redeployed to Camp Dogwood, 20 miles (32km) from Baghdad, on 27 October, while US Marines prepared for their assault on Falluja.
Black Watch soldiers have blocked off a key bridge on the eastern bank of the River Euphrates in an effort to stop fighters and weapons being moved by Sunni insurgents.