When four days passed without enemy contacts along the MSR, General Almond decided to expedite the movement of RCT-5 to the Hamhung area. In a conference with General Smith on 2 November, he outlined a plan for using patrols instead of blocking positions. Under this system RCT-1, with elements of the 1st Tank Battalion, would be made responsible for MSR security as far north as Munchon. The 54-mile stretch between Munchon and Chigyong would be assigned to the Special Operations Company, USA, and Korean agents, both under Corps control. As soon as these arrangements could be put into effect, RCT-5 would be free to advance to Hamhung. That same day, 2 November, the 2d Battalion was released from operational control of RCT-1 and moved to Hamhung.[204] [204] CG’s Diary in X Corps _WD_, 2 Nov 50. Smith, _Notes_, 463–464. The Special Operations Company was a commando-type U. S. Army organization, generally employed in such operations as raids and reconnaissance. The strength, weapons, and organization depended on the mission. Ironically, the 2d was also the date of the first guerrilla raid on the MSR. A patrol from the 1st Tank Battalion was sent by Division to the aid of the Special Operations Company, which had reported an attack west of Munchon resulting in a wound casualty and loss of equipment. The Marines drove the guerrillas back into the hills.[205] [205] 11thMar tel to G-2 1stMarDiv, 1300 2 Nov 50; 1stMarDiv _PIR_ 9. _Chinese in X Corps Zone_ Red Korean guerrilla activities were overshadowed by confirmation of reports that organized CCF units had appeared in the X Corps zone as well as on the Eighth Army front. After crossing the Yalu, they had secretly infiltrated through the mountains, marching by night and hiding by day from air observation. Their numbers and intentions remained a mystery at this date, but late in October the 8th U. S. Cavalry Regiment and the 6th ROK Division were surprised by Chinese in northwest Korea and badly mauled.[206] [206] EUSAK _WDs_ 29 Oct-1 Nov 50. First-hand evidence of CCF penetrations in northeast Korea was obtained by three Marine officers of RCT-7. Shortly after arrival in the Hamhung area, the regimental commander sent out reconnoitering parties in preparation for the northward advance of 1 November. The 1/7 patrol on 31 October consisted of a fire team in three jeeps led by Captain Myron E. Wilcox and First Lieutenants William G. Graeber and John B. Wilson. As a result of their visit to the CP of the 26th ROK Regiment of the 3d ROK Division, which RCT-7 was scheduled to relieve near Sudong (see Map 7) on 2 November, the Marine officers reported to their regimental headquarters that they had seen one Chinese prisoner.[207] [207] Maj J. B. Wilson and Capt W. G. Graeber interv, 20 Oct 55.