I am employed as a contract staff in a financial institution in Ghana and have an invite from the British Army to come for assessment. I have a sister legally resident in the UK. My monthly commission ranges from Ghs 1000 to Ghs 3000 a month. I manage my deceased mum's business with a bank balance around Ghs 150000. I have the backing of my HR with a leave letter from them and also stating my job is secured even if I'm not successful with the army. Do I stand a chance to obtain a standard visa?