This report summarizes the field trials and scenario-based exercises conducted September 25th to 28th as a part of the Demo UCAV project, a collaboration between the Swedish Armed Forces, The Swedish Material Administration (FMV) and the Swedish Defence Research Agency (FOI). The purpose of the trials was to improve understanding of fundamental C-UAS capabilities, focusing on detecting, countering, and avoiding detection from unmanned systems. Over three days, practical experiments were carried out using man-portable sensors, passive camera systems and various types of UAVs to study detection performance, the effect of small-arms fire, and the impact of camouflage and decoys. The results formed the basis for scenario-based workshops in which three types of units, mechanized, artillery and ranger battalions, were used to analyse how C-UAS capabilities can be integrated and optimized at battalion level. The trials show that effective C-UAS requires a combination of technical systems, training and tactics, as well as robust information sharing between units. Small-arms air defence is assessed to constitute a possible complementary layer in a layered defence but requires further study. Camouflage and deception are identified as essential for survivability in a drone-dominated operational environment. The report also highlights the need for continued development of sensors, methods and realistic training.