I think force ten is vango's expedition/mountain range.
That certainly used to be the case... the original orange cotton Force Ten Mk3 & Mk4s were good for 30 years+ normal use.
Gutted that my nylon Mk2 gave up the ghost after only 20 years.
From the specs I could find it seems that they are now using the Force Ten name for products which will prove rather less durable.
But why on earth buy a single skin tent that weighs 1.3 kgs? Get a Terra Nova Laser (regular Laser, not the Comp or the Photon) - same weight, but twin skin, so far less condensation.