Ooo. So the British can also win wars against guerrillas. My respect.

In any case, yeah Portugal did crush the nationalistic independent guerrillas in Angola and Mozambique. By the time of their own independence they were so utterly crushed and man handled, they were already fighting more each other (In Angola), with the permission of Portugal, then the 'colonizers'. In Mozambique, a huge encirclement of the guerrilla forces crushed most of their forces as well. Guinea was the only place where large combats still occurred. But those large combats were basically Guineans attacking from other countries, under the cover of their own artillery, based off in other countries. Whenever the Portuguese sallied out of their camps, the Guineans would immediatly flee to other countries (That's the pity of fighting a war in a small piece of territory, with neighbouring countries pro-actively helping the rebels.) A sollution would be to do like the Americans did in Vietnam, and raze to the ground with napalms several known hiding spots of guerrillas near the borders, so they would have nowhere to hide. But of course that would cause the uproar of the International Community due to the possible high civillian casualties, so such a conflict ending sollution was not used.

Still the Portuguese Commandoes did dozens of Covert operations (Assassinations and sabotage) in those countries that could fall nothing short of great blockbuster movies.

But yeah, considering the size of the territories, the Coalition could probably learn some things through the Portuguese methods. (Of course, the general scenario of both wars are different, but it's still counter-insurgency)