Overriding other controllers and their routes

[NopHttpsRequirement(SslRequirement.No)]
        public new ActionResult Category(int categoryId, CatalogPagingFilteringModel command){
 ....
}

public class StrelliRouteProvider : IRouteProvider {
        public int Priority => -1111111;
        //default nop routes have priority -1000000, 
        //we want to be called later to overwrite the existing routes

        public void RegisterRoutes(RouteCollection routes) {
            routes.Remove(routes["Category"]);
            routes.MapLocalizedRoute(
                "Category",
                "{SeName}",
                new { controller = "Catalog", action = "Category" },
                new[] { "Strelli.Nop.Controllers" }
            );

            
        }
    }

[NopHttpsRequirement(SslRequirement.No)]
        public new ActionResult Category(int categoryId, CatalogPagingFilteringModel command){
 ....
}

namespace Strelli.Nop.Controllers {
    public partial class CatalogController : BasePublicController {
        private readonly StrelliCatalogController _catalogController;

        public CatalogController(ICategoryService categoryService, 
            IManufacturerService manufacturerService,
            IProductService productService, 
            IVendorService vendorService,
            ICategoryTemplateService categoryTemplateService,
            IManufacturerTemplateService manufacturerTemplateService,
            IWorkContext workContext, 
            IStoreContext storeContext,
            ITaxService taxService, 
            ICurrencyService currencyService,
            IPictureService pictureService, 
            ILocalizationService localizationService,
            IPriceCalculationService priceCalculationService,
            IPriceFormatter priceFormatter,
            IWebHelper webHelper, 
            ISpecificationAttributeService specificationAttributeService,
            IProductTagService productTagService,
            IGenericAttributeService genericAttributeService,
            IAclService aclService,
            IStoreMappingService storeMappingService,
            IPermissionService permissionService, 
            ICustomerActivityService customerActivityService,
            ITopicService topicService,
            IEventPublisher eventPublisher,
            ISearchTermService searchTermService,
            MediaSettings mediaSettings,
            CatalogSettings catalogSettings,
            VendorSettings vendorSettings,
            BlogSettings blogSettings,
            ForumSettings  forumSettings,
            ICacheManager cacheManager) 
        {
            _catalogController = new StrelliCatalogController(
                categoryService, manufacturerService, productService, vendorService, categoryTemplateService,
                manufacturerTemplateService, workContext, storeContext, taxService, currencyService,
                pictureService, localizationService, priceCalculationService, priceFormatter, webHelper,
                specificationAttributeService, productTagService, genericAttributeService, aclService,
                storeMappingService, permissionService, customerActivityService, topicService, eventPublisher,
                searchTermService, mediaSettings, catalogSettings, vendorSettings, blogSettings, forumSettings, cacheManager
            );
        }

        [NopHttpsRequirement(SslRequirement.No)]
        public ActionResult Category(int categoryId, CatalogPagingFilteringModel command) {
            return _catalogController.StrelliCategory(categoryId, command);
        }
    }

    public partial class StrelliCatalogController : Nop.Web.Controllers.CatalogController {
        //fields and ctr
        ...
        public ActionResult StrelliCategory(int categoryId, CatalogPagingFilteringModel command) {
            //custom code using the protected methods of Nop.Web.Controllers.CatalogController
        }
    }
}