Complex sentence: Today, the magazine focuses exclusively on miniature wargames and thoroughly covers the models, miniatures and related paraphernalia created by Games Workshop and has carried the tagline "Games Workshop's monthly gaming supplement & Citadel miniatures catalogue" for a long period.
Split into simpler sentences: Today, the magazine focuses exclusively on miniature wargames and thoroughly covers the models, miniatures and related paraphernalia created by Games Workshop. It has carried the tagline "Games Workshop's monthly gaming supplement & Citadel miniatures catalogue" for a long period.