Sapper Walker was killed and six others injured when the Afghan soldier opened fire on international and ANA troops.
He leaves behind a young daughter, Lilly-Faith, who he had only known for 18 months before he was deployed for his first tour of Afghanistan in September.
"Richard held two things close to his heart - his daughter and his colleagues
in the Army.
A proud, patriotic man, he died doing a job he loved, supporting his friends."
Family of Sapper Walker
"Sapper Walker was the epitome of a true Sapper, one who would roll up his sleeves and get on with the task in hand no matter what, but importantly he would do it with great humour."
At 11am, Sedgefield village green fell silent as veterans paid their respects once again.
It has become a local focal point for many as members of Sedgefield Village Veterans gather to mark each loss.
It was confirmed yesterday that another British soldier died in hospital from wounds suffered in combat in Afghanistan. He was from 1st Battalion The Duke of Lancaster's Regiment and was flown back to Britain for treatment.
The number of members of UK forces to have died since operations in Afghanistan began in October 2001 now stands at 440.
Veterans have gathered to pay their respects to Sapper Richard Walker Credit: ITV Tyne Tees
Veterans have gathered to pay their respects to a North East soldier killed in Afghanistan.
Sapper Richard Walker, from Washington, was shot dead by a member of the Afghan National Army last week.
To mark his repatriation this morning, the Sedgefield Village Veterans are holding a special ceremony.
Sedgefield Village Veterans hold special ceremony Credit: ITV Tyne TeesSapper Walker, from Washington, was shot dead by a member of the Afghan National Army
The 23-year-old was serving with 28 Engineer Regiment. He was described by his senior officer as a "true sapper who had a promising future".
His family are expected to attend his repatriation ceremony at RAF Brize Norton.
Soldier killed in Afghanistan to be repatriated today
Sapper Richard Walker died two weeks ago Credit: Ministry of Defence
The body of Sapper Richard Walker, who died in a shooting in Afghanistan two weeks ago, is being repatriated later. The 23 was originally from Leeds but lived on Wearside.