UKF pretty much has more sight options than any other faction. Vet 1 for IS gives +10 sight range in cover, Pyrotechnics upgrade gives +7 sight, Assault Officer has a vet 1 recon plane, the AEC has 50 sight (at vet 2 after patch), they have a sniper (up to 54 sight), Tank Commander upgrade with +10 sight range on almost all tanks, a flare ability on the 17 Pounder, the Valentine Observation Mode with sight of up to 63 range, a ton of recon abilities in commanders, and Commandos to scout with from camouflage.
Almost all of which are on either infantry or light forces, which is as it should be.
Though as for recon into the fog of war... The recon plane is shot down making it a waste of munitions ( used to be a free ability on the commnd vehicle though generally lasted about 15 seconds). Flare from the 17 pdr only reaches it's perimeter... Lord knows who thought that piece of trash needed a nerf! Sniper's sight is being nerfed... Despite them supposedly being a light vehicle counter... That isn't going to work.
What is lacking is non doc recon into the fog of war, which is essential given static emplacements. Otherwise you can just park leigs, stukas etc and shell to your hearts content. The only possible counterplay is doctrinal.
Good spotting should be for infantry and light vehicles across all factions, not 50 tonne tanks or semi mobile pillboxes. Hence combined arms is required to use the heavy stuff.